Last updated: March 4, 2025COTREX Trails and TrailheadsAdded in February 2019, the Colorado Trail System, now titled the Colorado Trail Explorer (COTREX), endeavors to map every trail in the state of Colorado. Currently there are nearly 40,000 miles of trails mapped. Trails come from a variety of sources (USFS, BLM, local parks & recreation departments, local governments) and are compiled by CPW contractor Natural Atlas. Responsibility for accuracy of the data rests with the source.CPW Designated TrailsRecognizing that an all-inclusive, spatially-aware model of trails Colorado State Park is a useful management tool and a valuable public resource this geodatabase is designed to accomplish three objectives.1. Inventorying all designated trails Colorado Parks & Wildlife maintain in Colorado State associate each trail segment with 38 applicable attributes. (length, width, surface, difficulty, etc.)2. Determine and track if the following 11 uses are permitted on each trail segment: 1:Hiking, 2:Biking, 3: Equestrian 4:Pets, 5:Snowshoeing. 6: Cross Country Skiing, 7: Snowmobiling, 8: Grooming, 9: OHV 10: Other Power Driven Mobility Devices (OPDMD), 11:Wheelchair friendliness (Not ADA accessibility)3. Model Colorado State Park Trail system in a spatially aware three dimensional space and associate each trail segment to 38 attributes that can be used to producing a set of standardized trail maps for public and internal use.

COTREX Trails and Trailheads Added in February 2019, the Colorado Trail System, now titled the Colorado Trail Explorer (COTREX), endeavors to map every trail in the state of Colorado. Currently there are nearly 40,000 miles of trails mapped. Trails come from a variety of sources (USFS, BLM, local parks & recreation departments, local governments) and are compiled by CPW contractor Natural Atlas. Responsibility for accuracy of the data rests with the source.

CPW Trail Segments Recognizing that an all-inclusive, spatially-aware model of trails Colorado State Park is a useful management tool and a valuable public resource this geodatabase is designed to accomplish three objectives. 1. Inventorying all designated trails Colorado Parks & Wildlife maintain in Colorado State associate each trail segment with 38 applicable attributes. (length, width, surface, difficulty, etc.)

1. Determine and track if the following 11 uses are permitted on each trail segment: 1:Hiking, 2:Biking, 3: Equestrian 4:Pets, 5:Snowshoeing. 6: Cross Country Skiing, 7: Snowmobiling, 8: Grooming, 9: OHV 10: Other Power Driven Mobility Devices (OPDMD), 11:Wheelchair friendliness (Not ADA accessibility)

2. Model Colorado State Park Trail system in a spatially aware three dimensional space and associate each trail segment to 38 attributes that can be used to producing a set of standardized trail maps for public and internal use.

This web map created by the Colorado Governor's Office of Information Technology GIS team, serves as a basemap specific to the state of Colorado. The basemap includes general layers such as counties, municipalities, roads, waterbodies, state parks, national forests, national wilderness areas, and trails.Layers:Layer descriptions and sources can be found below. Layers have been modified to only represent features within Colorado and are not up to date. Layers last updated February 23, 2023. Colorado State Extent: Description: “This layer provides generalized boundaries for the 50 States and the District of Columbia.” Notes: This layer was filtered to only include the State of ColoradoSource: Esri Living Atlas USA States Generalized Boundaries Feature LayerState Wildlife Areas:Description: “This data was created by the CPW GIS Unit. Property boundaries are created by dissolving CDOWParcels by the property name, and property type and appending State Park boundaries designated as having public access. All parcel data correspond to legal transactions made by the CPW Real Estate Unit. The boundaries of the CDOW Parcels were digitized using metes and bounds, BLM's GCDB dataset, the PLSS dataset (where the GCDB dataset was unavailable) and using existing digital data on the boundaries.” Notes: The state wildlife areas layer in this basemap is filtered from the CPW Managed Properties (public access only) layer from this feature layer hosted in ArcGIS Online Source: Colorado Parks and Wildlife CPW Admin Data Feature LayerMunicipal Boundaries:Description: "Boundaries data from the State Demography Office of Colorado Municipalities provided by the Department of Local Affairs (DOLA)"Source: Colorado Information Marketplace Municipal Boundaries in ColoradoCounties:Description: “This layer presents the USA 2020 Census County (or County Equivalent) boundaries of the United States in the 50 states and the District of Columbia. It is updated annually as County (or County Equivalent) boundaries change. The geography is sources from US Census Bureau 2020 TIGER FGDB (National Sub-State) and edited using TIGER Hydrology to add a detailed coastline for cartographic purposes. Geography last updated May 2022.” Notes: This layer was filtered to only include counties in the State of ColoradoSource: Esri USA Census Counties Feature LayerInterstates:Description: Authoritative data from the Colorado Department of Transportation representing Highways Notes: Interstates are filtered by route sign from this CDOT Highways layer Source: Colorado Department of Transportation Highways REST EndpointU.S. Highways:Description: Authoritative data from the Colorado Department of Transportation representing Highways Notes: U.S. Highways are filtered by route sign from this CDOT Highways layer Source: Colorado Department of Transportation Highways REST EndpointState Highways:Description: Authoritative data from the Colorado Department of Transportation representing Highways Notes: State Highways are filtered by route sign from this CDOT Highways layer Source: Colorado Department of Transportation Highways REST EndpointMajor Roads:Description: Authoritative data from the Colorado Department of Transportation representing major roads Source: Colorado Department of Transportation Major Roads REST EndpointLocal Roads:Description: Authoritative data from the Colorado Department of Transportation representing local roads Source: Colorado Department of Transportation Local Roads REST EndpointRail Lines:Description: Authoritative data from the Colorado Department of Transportation representing rail lines Source: Colorado Department of Transportation Rail Lines REST EndpointCOTREX Trails:Description: “The Colorado Trail System, now titled the Colorado Trail Explorer (COTREX), endeavors to map every trail in the state of Colorado. Currently their are nearly 40,000 miles of trails mapped. Trails come from a variety of sources (USFS, BLM, local parks & recreation departments, local governments). Responsibility for accuracy of the data rests with the source.These data were last updated on 2/5/2019” Source: Colorado Parks and Wildlife CPW Admin Data Feature LayerNHD Waterbodies:Description: “The National Hydrography Dataset Plus (NHDplus) maps the lakes, ponds, streams, rivers and other surface waters of the United States. Created by the US EPA Office of Water and the US Geological Survey, the NHDPlus provides mean annual and monthly flow estimates for rivers and streams. Additional attributes provide connections between features facilitating complicated analyses.”Notes: This layer was filtered to only include waterbodies in the State of ColoradoSource: National Hydrography Dataset Plus Version 2.1 Feature LayerNHD Flowlines:Description: “The National Hydrography Dataset Plus (NHDplus) maps the lakes, ponds, streams, rivers and other surface waters of the United States. Created by the US EPA Office of Water and the US Geological Survey, the NHDPlus provides mean annual and monthly flow estimates for rivers and streams. Additional attributes provide connections between features facilitating complicated analyses.”Notes: This layer was filtered to only include flowline features in the State of ColoradoSource: National Hydrography Dataset Plus Version 2.1 Feature LayerState Parks:Description: “This data was created by the CPW GIS Unit. Property boundaries are created by dissolving CDOWParcels by the property name, and property type and appending State Park boundaries designated as having public access. All parcel data correspond to legal transactions made by the CPW Real Estate Unit. The boundaries of the CDOW Parcels were digitized using metes and bounds, BLM's GCDB dataset, the PLSS dataset (where the GCDB dataset was unavailable) and using existing digital data on the boundaries.” Notes: The state parks layer in this basemap is filtered from the CPW Managed Properties (public access only) layer from this feature layer Source: Colorado Parks and Wildlife CPW Admin Data Feature LayerDenver Parks:Description: "This dataset should be used as a reference to locate parks, golf courses, and recreation centers managed by the Department of Parks and Recreation in the City and County of Denver. Data is based on parcel ownership and does not include other areas maintained by the department such as medians and parkways. The data should be used for planning and design purposes and cartographic purposes only."Source: City and County of Denver Parks REST EndpointNational Wilderness Areas:Description: “A parcel of Forest Service land congressionally designated as wilderness such as National Wilderness Area.”Notes: This layer was filtered to only include National Wilderness Areas in the State of ColoradoSource: United States Department of Agriculture National Wilderness Areas REST EndpointNational Forests: Description: “A depiction of the boundaries encompassing the National Forest System (NFS) lands within the original proclaimed National Forests, along with subsequent Executive Orders, Proclamations, Public Laws, Public Land Orders, Secretary of Agriculture Orders, and Secretary of Interior Orders creating modifications thereto, along with lands added to the NFS which have taken on the status of 'reserved from the public domain' under the General Exchange Act. The following area types are included: National Forest, Experimental Area, Experimental Forest, Experimental Range, Land Utilization Project, National Grassland, Purchase Unit, and Special Management Area.”Notes: This layer was filtered to only include National Forests in the State of ColoradoSource: United States Department of Agriculture Original Proclaimed National Forests REST Endpoint

The Digital Geologic-GIS Map of the Trail Canyon Quadrangle, Colorado is composed of GIS data layers and GIS tables, and is available in the following GRI-supported GIS data formats: 1.) a 10.1 file geodatabase (trca_geology.gdb), and a 2.) Open Geospatial Consortium (OGC) geopackage. The file geodatabase format is supported with a 1.) ArcGIS Pro map file (.mapx) file (trca_geology.mapx) and individual Pro layer (.lyrx) files (for each GIS data layer), as well as with a 2.) 10.1 ArcMap (.mxd) map document (trca_geology.mxd) and individual 10.1 layer (.lyr) files (for each GIS data layer). Upon request, the GIS data is also available in ESRI 10.1 shapefile format. Contact Stephanie O'Meara (see contact information below) to acquire the GIS data in these GIS data formats. In addition to the GIS data and supporting GIS files, three additional files comprise a GRI digital geologic-GIS dataset or map: 1.) a readme file (meve_geology_gis_readme.pdf), 2.) the GRI ancillary map information document (.pdf) file (meve_geology.pdf) which contains geologic unit descriptions, as well as other ancillary map information and graphics from the source map(s) used by the GRI in the production of the GRI digital geologic-GIS data for the park, and 3.) a user-friendly FAQ PDF version of the metadata (trca_geology_metadata_faq.pdf). Please read the meve_geology_gis_readme.pdf for information pertaining to the proper extraction of the GIS data and other map files. QGIS software is available for free at: https://www.qgis.org/en/site/. The data were completed as a component of the Geologic Resources Inventory (GRI) program, a National Park Service (NPS) Inventory and Monitoring (I&M) Division funded program that is administered by the NPS Geologic Resources Division (GRD). For a complete listing of GRI products visit the GRI publications webpage: For a complete listing of GRI products visit the GRI publications webpage: https://www.nps.gov/subjects/geology/geologic-resources-inventory-products.htm. For more information about the Geologic Resources Inventory Program visit the GRI webpage: https://www.nps.gov/subjects/geology/gri,htm. At the bottom of that webpage is a "Contact Us" link if you need additional information. You may also directly contact the program coordinator, Jason Kenworthy (jason_kenworthy@nps.gov). Source geologic maps and data used to complete this GRI digital dataset were provided by the following: National Park Service. Detailed information concerning the sources used and their contribution the GRI product are listed in the Source Citation section(s) of this metadata record (trca_geology_metadata.txt or trca_geology_metadata_faq.pdf). Users of this data are cautioned about the locational accuracy of features within this dataset. Based on the source map scale of 1:24,000 and United States National Map Accuracy Standards features are within (horizontally) 12.2 meters or 40 feet of their actual location as presented by this dataset. Users of this data should thus not assume the location of features is exactly where they are portrayed in ArcGIS, QGIS or other software used to display this dataset. All GIS and ancillary tables were produced as per the NPS GRI Geology-GIS Geodatabase Data Model v. 2.3. (available at: https://www.nps.gov/articles/gri-geodatabase-model.htm).

Geospatial data about Arapahoe County, Colorado Trails. Export to CAD, GIS, PDF, CSV and access via API.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, and stairways.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, stairways, and winter trails.

Trails within the Forest Preserve District of Cook County. To view or use these shapefiles, compression software and special GIS software, such as ESRI ArcGIS, is required.

Geospatial data about Colorado Trail Uploads. Export to CAD, GIS, PDF, CSV and access via API.

Open Data. Trails within Douglas County, Colorado

Geospatial data about Adams County, Colorado Trails. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about El Paso County, Colorado Trails. Export to CAD, GIS, PDF, CSV and access via API.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, stairways, and winter trails.

Geospatial data about Elbert County, Colorado Trails. Export to CAD, GIS, PDF, CSV and access via API.

A dataset delineating all trail locations owned and managed by Jefferson County Open Space Department (JCOS) -- Data Type: Line -- Sensitive: No -- Source of Origin: JCOS -- Creation Means: JCOS creates and maintains trail data through a combination of GPS data collection, heads-up digitizing, and a combination of the two methods -- Original Projection: NAD_1983_StatePlane_Colorado_Central_FIPS_0502_Feet (WKID: 2232)

This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, and stairways.

These data represent the trails owned and managed by JCOS.Data Type: LineSensitive: NoSource of Origin: JCOSCreation Means: JCOS creates and maintains trail data through a combination of GPS data collection, heads-up digitizing, and a combination of the two methods.Original Projection: NAD_1983_StatePlane_Colorado_Central_FIPS_0502_Feet (WKID: 2232)Business Rules:1. Features are segmented by trail name, at intersections, and where Park Association changes (indicated by Park Association_FK field).2. A new GIS_ID_PK is created for each new segment.3. A new GIS_ID_PK is created for one new segment resulting from a split, one feature will retain original GIS_ID_PK.4. Fully attribute Trail_Difficulty_Rating, User_Type, and Concept fields (no Nulls).5. Trail junctions with 'triangles' must contain vegetation within the triangle. Otherwise, the intersection will be a 'T'.Guidelines:1. Avoid trail segments shorter than 15 feet.2. Digitization direction should be outward from the main trailhead.

Geospatial data about Summit County, Colorado Trails. Export to CAD, GIS, PDF, CSV and access via API.

This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, and stairways.

River Reach Habitat Quality (RFC 2008)

This layer was digitized in 2015 for the HRS Board using data from the 2008 State of the Watershed Report. This layer shows the quality of habitat surveyed by Delia Malone on selected reaches in the Roaring Fork Watershed. This data is intended as a reference for future research and planning, site specific conditions may vary. Strahler Steam Order numbers are also given for each river reach.

River Watch Sites

This layer was digitized in 2015 for the HRS Board using data from the Roaring Fork Conservancy. The layer shows River Watch sites where the RFC and partner organizations monitor stream health indicators. Active sites are marked with an “x” in the popup. To access the data please visit http://cpw.state.co.us/aboutus/Pages/RW-DataSheets.aspx and search for the river and monitoring site of interest. For more information about the program and additional summery data please contact the RFC www.roaringfork.org

Surface Water Realtime (USGS, CDSS)

This layer shows realtime telemetry gauges maintained by the United States Geological Survey and the Colorado Decision Support System. Click on the icon and then click on “more info” to link to the gauge website. This layer can be used to monitor stream flows and diversion tunnel flows (cfs). Please see the USGS and CDSS websites for more information.

Parcel Boundary (Pitkin County GIS 2015)

This layer identifies property boundaries in Pitkin County. The Parcel geometry is created by reading legal descriptions through Plats, Surveys, Deeds, and CAD drawing files. Approximately 15% of land in Pitkin County is privately held, which is represented in this layer. Federal lands are shown in the Forest Lands layer. Please see http://www.pitkincounty.com/458/GIS-Mapping for more information.

Recreation Easement (Pitkin County GIS 2015)

This layer contains recreation easements throughout Pitkin County with attributes that include the easement type, common name and establishment information. Please see http://www.pitkincounty.com/458/GIS-Mapping or Pitkin County Open Spaces and Trails for more information.

Federal Land Boundary (Pitkin County GIS 2015)The parcel layer and Forest (or Federal Land) layer are independently maintained layers. The Forest layer included lands owned by U.S. Forest Service (USFS), Bureau of Land Management (BLM), and the State of Colorado (State of CO). Approximately 85% of the land area in Pitkin County is Federal Land. Please see http://www.pitkincounty.com/458/GIS-Mapping for more information.SNOTEL Sites From NRCSThese files are updated daily around 7:30 am and 12:30 Pacific Time with midnight summaries of the previous day's data. The symbols are color-coded by the current snow water equivalent as a percent of the 1981-2010 normal on this date. Clicking on a symbol will reveal additional information, including a photo of the site, more real-time data, and links to charts and additional reports. Please visit http://www.wcc.nrcs.usda.gov/snotel/ for more information.