This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.

This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.

This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.

This dataset maps wetlands across New Hampshire with the potential to retain sediment and other particulate matter, a critical wetland function that contributes to water quality protection and erosion control. Developed using the National Wetlands Inventory Plus (NWI Plus) framework, this data layer is maintained by the New Hampshire Department of Environmental Services (NHDES) and assesses functional potential based on wetland type, geomorphic position, hydrologic flow path, and other landscape characteristics.Wetlands with high sediment and particulate retention potential act as natural filters, capturing sediments, nutrients, and contaminants carried by surface water before they enter lakes, rivers, estuaries, and groundwater systems. This function helps maintain aquatic habitat quality, reduces sedimentation of downstream waterbodies, and supports broader watershed health and resilience.The layer supports use in nonpoint source pollution planning, watershed management, stormwater design, and conservation prioritization. While the model provides landscape-level insights into likely functional capacity, it should be used in conjunction with field-based assessments and other local data for site-specific decisions or regulatory applications.Key Attributes Included:ATTRIBUTE: Function code linked to sediment and particulate retention.QAQC_CODE: Indicates level of data review and validation.WETLAND_TY: NWI wetland classification code (e.g., PEM, PSS, PUB).ACRES: Wetland size in acres.Landscape, Landscape2: General hydrologic and topographic context.Landform, Landform2: Position in the landform continuum (e.g., floodplain, fringe).WaterFlowP: Surface water flow direction/type (e.g., inflow, outflow, throughflow).LLWW_Code: Composite code for landscape position, landform, water flow path, and waterbody type.OtherModif: Notes on hydrologic or anthropogenic alterations (e.g., ditching, impoundments).SM: Sediment and Particulate Retention score – primary attribute of interest.Other supporting wetland function scores:CAR – Carbon SequestrationNT – Nutrient TransformationSWD – Stormwater DetentionFAIH – Fish and Aquatic Invertebrate HabitatOWH – Other Wildlife HabitatCSS, BSS, WBIRD, UWPC – Additional function indicatorsShape_Leng, SHAPE_Length, SHAPE_Area: Geometric data for spatial analysis.fid: Feature ID for geodatabase reference.

This data set contains 13 categories of land use data (polygons) for Strafford County, New Hampshire. The primary data used to derive the layer were 1998 United States Geological Survey (USGS) 1:12,000-scale, black & white, Digital Orthophoto Quadrangles (DOQs). Other sources used to develop the classification included road centerline data from the New Hampshire Department of Transportation (NHDOT) and USGS Digital Line Graphs (DLGs), surface water data from the Federal Emergency Management Agency Digital Flood Insurance Rate Maps (DFIRMs), wetlands data from the National Wetlands Inventory (NWI) of the United States Fish and Wildlife Service (FWS), and Landsat Thematic Mapper imagery.

The NH Department of Environmental Services (NHDES) Geodata Portal is the official open data hub for accessing authoritative environmental geospatial information across the state of New Hampshire. Developed and maintained by NHDES, this portal provides public access to a wide range of interactive maps, downloadable datasets, and GIS-based applications related to environmental protection, water resources, land use, conservation planning, and regulatory programs.Designed to support researchers, municipal planners, environmental professionals, and the general public, the Geodata Portal promotes transparency, informed decision-making, and collaborative environmental stewardship. Through a user-friendly and mobile-responsive interface, users can explore data on wetlands, drinking water supplies, wastewater infrastructure, floodplains, permits, water quality monitoring, air emissions, and more.The portal supports key NHDES programs and initiatives, including:Wetlands permitting and mitigation (e.g., ARM Fund projects)Drinking water source protectionSurface water quality assessments and standardsGroundwater and stormwater managementClimate and resilience planningCompliance and enforcement toolsUsers can view and download data, connect to ArcGIS Online content, or explore apps and dashboards that bring complex environmental information to life through visualization and interactivity.🔍 Key FeaturesSearchable and filterable data catalogInteractive web maps and applicationsDownloadable GIS layers in multiple formatsReal-time dashboards and reporting toolsIntegration with ArcGIS Online and Enterprise environments🔧 Maintained by:New Hampshire Department of Environmental Services (NHDES)GIS & Data Integration Team

This feature class shows the location of wetland areas in the city of Nashua, NH

This data set contains 13 categories of land use data (polygons) for Rockingham County, New Hampshire. The primary data used to derive the layer were 1998 United States Geological Survey (USGS) 1:12,000-scale, black & white, Digital Orthophoto Quadrangles (DOQs). Other sources used to develop the classification included road centerline data from the New Hampshire Department of Transportation (NHDOT) and USGS Digital Line Graphs (DLGs), surface water data from the Federal Emergency Management Agency Digital Flood Insurance Rate Maps (DFIRMs), wetlands data from the National Wetlands Inventory (NWI) of the United States Fish and Wildlife Service (FWS), and Landsat Thematic Mapper imagery.

This data set contains boundary layers for the John Hay National Wildlife Refuge in New Hampshire.

National Wildlife Refuges are federal lands managed by the U.S. Fish and Wildlife Service (USFWS). The primary source for boundary information is the USFWS Realty program (status maps, legal surveys). An effort by the USFWS Region 5 (northeast states - ME, NH, VT, MA, RI, CT, NY, PA, NJ, MD, DE, WV, VA) Realty Division, Cartography and Spatial Data Services Branch has resulted in digital refuge boundaries for all refuges in the northeast at a scale of 1:24,000.

The purpose of this data is to serve as a spatial reference of refuge boundaries for other data layers in GIS and mapping applications. It is specifically not intended to be used as a land survey or representation of land for conveyance or tax purposes.

Status maps were registered to geographic coordinates, boundaries were digitized and labeled. Digital files were updated using survey and collateral data, then stepped through 3 levels of quality-control review for spatial and thematic accuracy.

Refuge boundaries define areas that are approved by U.S. Congress for acquisition into the National Wildlife Refuge System, or are currently owned by USFWS. Arcs are coded with an item "boundary"with the type of boundary line; polygons are coded with an item "status" that describes their ownership status.

[Summary provided by U.S. Fish & Wildlife Service]

description: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpreted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).; abstract: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpreted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).

This data set contains boundary layers for the Wapack National Wildlife Refuge in New Hampshire.

National Wildlife Refuges are federal lands managed by the U.S. Fish and Wildlife Service (USFWS). The primary source for boundary information is the USFWS Realty program (status maps, legal surveys). An effort by the USFWS Region 5 (northeast states - ME, NH, VT, MA, RI, CT, NY, PA, NJ, MD, DE, WV, VA) Realty Division, Cartography and Spatial Data Services Branch has resulted in digital refuge boundaries for all refuges in the northeast at a scale of 1:24,000.

The purpose of this data is to serve as a spatial reference of refuge boundaries for other data layers in GIS and mapping applications. It is specifically not intended to be used as a land survey or representation of land for conveyance or tax purposes.

Status maps were registered to geographic coordinates, boundaries were digitized and labeled. Update was performed on digital file using survey and collateral data, then stepped through 3 levels of quality-control review for spatial and thematic accuracy.

Refuge boundaries define areas that are approved by U.S. Congress for acquisition into the National Wildlife Refuge System, or are currently owned by USFWS. Arcs are coded with an item "boundary"with the type of boundary line; polygons are coded with an item "status" that describes their ownership status.

[Summary provided by U.S. Fish

description: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpeted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).; abstract: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpeted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).

Efficient stewardship of tidal wetlands requires robust comparative assessments of different marshes to understand their resilience to stressors, particularly in the face of relative sea level rise. To address this need, NH Fish and Game and the Great Bay National Estuarine Research Reserve developed a framework based on three elements of marsh resilience: current condition, vulnerability to sea level rise, and adaptation potential. In collaboration with other agencies and academics, we identified a set of metrics that influence resilience and then calculated a score for each element of resilience as well as an overall resilience score.

description: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpeted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).; abstract: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpeted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).

This file contains the land conservation focus areas that provide the greatest benefits to coastal water resources. Focus areas are targeted specifically to address threats associated with existing and future development, including: 1. Pollutant attenuation and removal: riparian buffers that intercept stormwater runoff and at the same time maintain natural cover adjacent to surface waters, and riparian wetlands that are highly efficient at treating pollutants already in surface waters; 2. Flood storage and risk mitigation: areas across the watershed with high flood storage capacities that reduce flood risks to downstream infrastructure, and natural areas that will accommodate sea level rise and salt marsh migration; 3. Public water supply: lands that safeguard surface and groundwater resources for human consumption. A feature class is included for each of the three target focus areas listed above. Additionally, a fourth feature class is included that combines the three focus areas, differentiating between areas of single and multiple target benefits.

This data set contains boundary layers for the Great Bay National Wildlife Refuge in New Hampshire.

National Wildlife Refuges are federal lands managed by the U.S. Fish and Wildlife Service (USFWS). The primary source for boundary information is the USFWS Realty program (status maps, legal surveys). A joint effort between the Region 5 (northeast - ME, MA, NH, VT, RI, CT, NY, PA, NJ, MD, VA, WV) GIS Lab and Realty program, has resulted in digital refuge boundaries for all refuges in the northeast at a 1:24,000 scale.

This purpose of this data is to serve as a spatial reference of refuge boundaries for other data layers in GIS and mapping applications. It is specifically not intended to be used as a land survey or representation of land for conveyance or tax purposes. The Realty Survey program in USFWS is developing cadastral information (boundary and acreage data) appropriate for legal purposes. It is expected that data created in this project will be replaced as better survey information is collected.

Status maps were registered to geographic coordinates, boundaries digitized and labeled, then stepped through 3 levels of quality review for spatial and thematic accuracy.

Refuge boundaries define areas that are approved by U.S. Congress for acquisition in the National Wildlife Refuge System, or are currently owned by USFWS. Arcs are coded with an item "boundary" that the type of boundary line and polygons are coded with an item "status" that describes their ownership status.

[Summary provided by U.S. Fish & Wildlife Service]

description: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpeted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).; abstract: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpeted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).

description: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpeted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).; abstract: James W. Sewall Company used its standard photointerpretation and ortho-mapping workflow and was assisted by NatureServe in crosswalking to NVC vegetation and wetlands mapping on approximately 115,926 acres across New England. Refuges include: Nulhegan NWR (VT), Pondicherry NWR (NH), Eastern Mass NWR (MA), Parker River NWR (MA), Rachel Carson NWR (ME), Sunkhaze Meadows NWR (ME), Moosehorn NWR (ME), Aroostook NWR (ME) and several island refuges in Massachusetts. Aerial photography using color infrared (CIR) film was acquired during the spring and early summer at a scale of 1"=1000' (1:12,000). Sewall's photointerpreter conducted fieldwork in conjunction with NatureServe and FWS staff to identify signature and establish what would be classified. Fieldwork was limited due to budgetary constraints, but all but the island refuges were visited - four by Sewall with NatureServe and/or USFW staff accompanying, and the remainder by NatureServe and USFW staff only, who provided detailed feedback to Sewall in the form of annotated maps and GIS data. For the island refuges, NatureServe and USFW staff provided data and suggested NVC classes. This shapefile contains the interpeted attributes and has been "crosswalked" with NVC codes (up to 3 per polygon).