This is an ArcGIS Online web service updated by the Colorado Parks and Wildlife GIS Unit on December 11, 2024 for distributing Colorado state parks and wildlife species GIS data compiled in support of COGCC and SB181 for public distribution.

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.

This information was derived from the 1:24,000 scale Digital Rastor Graphics (DRG's). Data were digitized on-screen using the Arc/Info module to create a Mountain Goat Hunting Unit polygon coverage. Where available, coincident lines were use from other available data. If these data were available but not at 1:24,000 scale or better, digitizing was done directly from the DRG, with the exception of Hydro Unit (HUC) boundaries, which were pulled from the Division's HUC coverages. Digitizing and attributing were done by the GIS Group of Colorado Parks and Wildlife. Label points have multiple attributes and linear features are attributed with the feature name that makes up that portion of the GMU boundary.

This is an ArcGIS Online web service updated by the Colorado Parks and Wildlife GIS Unit on March 4, 2025 for distributing Colorado administrative GIS data in a web service format for public distribution.

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.

The purpose of this layer is to inventory and track recreational uses (e.g. hike, bike, OHV... etc.) permitted on designated trails within Colorado Parks & Wildlife properties. Elevation (Z values) are expressed in meters above mean sea level (MSL) using the North American Vertical Datum of 1988 (NAVD88). All heights are approximate since they are are based on 10 meter resolution DEMs published by USGS.

These data are used to display the public recreational facilities at all Colorado Parks and Wildlife owned properties. The original intent of these data were to show facilities at a park level scale. Over time, this has evolved to be a more comprehensive collection of all recreation facilities - as GIS technology has advanced to allow improved labelling / display of features. Data is being compiled at CPW Area offices in consultation with local Property Technicians and Field Ops staff using high resolution aerial photography (NAIP05, NAIP09) as a reference and at a scale where structures could be visually identified by Chris Johnson. These data were originally combined from individual park shapefiles in 2010 by Bill Gaertner, under the direction of Matt Schulz, Parks GIS Coordinator. Since then, Eric Drummond, temp Trails GIS Specialist, vastly improved upon the ability to use a unique CPW font and the Maplex label engine to have dynamic labelling of standard recreation facility symbols.

These data are created by the CPW GIS Unit. CPW Property point locations are created by dissolving CPWAllProperties by the property name (after the removal of property unit names), property type and public access designation. One location point is generated for the center of each unique Property Name/Property Type set of parcel boundaries with the point forced inside one of the boundaries for properties with non-contiguous parcels. Public Access for each parcel is evaluated and a list of all the Public Access designations occurring for the property can be found in the attribute field 'PublicAccess'. All parcel data correspond to legal transactions made by the CPW Real Estate Unit. The boundaries of the CPW 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.

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

ElkWinterConcentrationArea is an ESRI SDE Feature Class that shows winter concentration areas for elk in the state of Colorado. This dataset represents that part of the winter range of elk where densities are at least 200% greater than the surrounding winter range density during the average five winters out of ten from the first heavy snowfall to spring green-up, or during a site specific period of winter as defined for each Data Analysis Unit. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35).

Colorado Parks and Wildlife Regional Service Centers (RSC's) focus on customer service, landowner issues, volunteer coordination, information and education, law enforcement, county land use planning, Area and property administration. This GIS dataset represents the Regional Service Center Boundaries for Colorado Parks and Wildlife. It was derived from the CO_DISTS coverage and simplified into the three RSC's in Colorado; Northeast, Southeast Northwest and Southwest. Attributes for this coverage and its contents are: RSC (contains the location of the RSC), RSC_PHONE (contains the phone number for the RSC).

Designated Cutthroat Trout Habitat is defined as areas located within 300 feet of the ordinary high water mark (centerline in absence of high water mark) of any stream segment located within CPW Cutthroat Trout Designated Crucial Habitat (CPW Chapter 0, Appendix C).

This data set is maintained by the CPW GIS Unit. These data include all public access designated parcels (Restricted, Seasonal, or Public Access) of SWA's included in Chapter 9, and State Parks.

SpottedBatOverallRange is an ESRI SDE Feature Class encompassing the observed and predicted range of a population of Spotted Bats in Colorado. This information was derived from species experts. A variety of data capture techniques were used including implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). Various sources were referenced in developing these data including areas delineated as 50% or higher predicted occupancy as modeled in MaxEnt using various Colorado bat site collection records, telemetry, historic records noted in Armstrong et al. 1994, and CPW Scientific Collection data.This generalized graphic representation of species range data is provided for informational purposes only and has not been prepared for, nor is it suitable for, any type of legal, regulatory, or site specific planning purposes. These data are subject to errors and change. Users of the information displayed in this map service are strongly cautioned to verify all information and contact local CPW Biologists before making any decisions.These data were last updated in January 2019.

GrSageGrouseLekSites is an ESRI SDE Feature Class showing those areas known to be used by sage grouse within the last 10 years from the date of mapping. "Use" is defined as 1) radio telemetry locations, 2) confirmed observations of birds or sign by reliable sources, 3) documented use reported in unpublished reports or publications (mapped by field biologists). Mapped as a buffer zone of 1.0 miles around all lek points (Active, Inactive), except 'Unknown' in the feature class GrSageGrouseLeks. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35).

Streams and lakes managed by CPW for native species buffered to 300 ft. for use in SB181 oil and gas analyses. Most data pulled from NHD (National Hydrography Dataset) created and maintined by USGS.

This dataset shows HUC12s containing a verified occurrence of Northern Leopard Frog (Lithobates pipiens) since 1970 in Colorado based on records in Colorado Parks and Wildlife Herptile database.These data were last updated in May 2020.

CaliforniaMyotisOverallRange is an ESRI SDE Feature Class encompassing the observed and predicted range of a population of California Myotis Bats in Colorado. This information was derived from species experts. A variety of data capture techniques were used including implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). Various sources were referenced in developing these data including areas delineated as 50% or higher predicted occupancy as modeled in MaxEnt using various Colorado bat site collection records, telemetry, historic records noted in Armstrong et al. 1994, and CPW Scientific Collection data.This generalized graphic representation of species range data is provided for informational purposes only and has not been prepared for, nor is it suitable for, any type of legal, regulatory, or site specific planning purposes. These data are subject to errors and change. Users of the information displayed in this map service are strongly cautioned to verify all information and contact local CPW Biologists before making any decisions.These data were last updated in January 2019.

Colorado Parks & Wildlife web application to allow users to turn on range layer data for wildlife species occurring in Colorado.Abert's Squirrel Overall Range Grouped Layers: Amphibians Blanchard's (Northern) Cricket Frog HUC 12 Presence Canyon Tree Frog HUC 12 Presence Couch's Spadefoot HUC 12 Presence Great Basin Spadefoot HUC 12 Presence Great Plains (Western) Narrow-mouthed Toad HUC 12 Presence Northern Leopard Frog HUC 12 Presence Plains Leopard Frog HUC 12 Presence Western Green Toad HUC 12 Presence Wood Frog HUC 12 Presence Grouped Layers: Bald Eagle Bald Eagle Nest Sites Bald Eagle Communal Roosts Bald Eagle Roost Sites Bald Eagle Summer Forage Bald Eagle Winter Concentration Bald Eagle Winter Forage Bald Eagle Winter Range Grouped Layers: Bats Allen's Big-eared Bat Overall Range Big Brown Bat Overall Range Big Free-tailed Bat Overall Range Brazilian Free-tailed Bat Overall Range California Myotis Overall Range Canyon Bat Overall Range Fringed Myotis Overall Range Hoary Bat Overall Range Little Brown Myotis Overall Range Long-eared Myotis Overall Range Long-legged Myotis Overall Range Pallid Bat Overall Range Red Bat Overall Range Silver-haired Bat Overall Range Spotted Bat Overall Range Townsends Big-eared Bat Overall Range Tri-colored Bat Overall Range Western Small-footed Myotis Overall Range Yuma Myotis Overall Range Grouped Layers: Bighorn Sheep Bighorn Migration Patterns Bighorn Migration Corridors Bighorn Production Area Bighorn Summer Concentration Area Bighorn Summer Range Bighorn Mineral Lick Bighorn Water Source Bighorn Severe Winter Range Bighorn Winter Concentration Area Bighorn Winter Range Bighorn Overall Range Grouped Layers: Birds American Bittern Breeding Range Band-tailed Pigeon Breeding Range Barrow Goldeneye Breeding Range Black Swift Breeding Range Black Tern Breeding Range Bobolink Breeding Range Brewer Sparrow Breeding Range Brown-capped Rosy Finch Breeding Range Brown-capped Rosy Finch Overall Range Burrowing Owl Breeding Range Cassin Finch Breeding Range Cassin Sparrow Breeding Range Chestnut-collared Longspur Breeding Range Ferruginous Hawk Breeding Range Golden Eagle Breeding Range Grace Warbler Breeding Range Grasshopper Sparrow Breeding Range Gray Vireo Breeding Range Juniper Titmouse Breeding Range Lark Bunting Breeding Range Lazuli Bunting Breeding Range Least Tern Breeding Range Lewis Woodpecker Breeding Range Long-billed Curlew Breeding Range McCown Longspur Breeding Range Mountain Plover Breeding Range Northern Bobwhite Breeding Range Northern Goshawk Breeding Range Northern Harrier Breeding Range Olive-sided Flycatcher Breeding Range Pinyon Jay Breeding Range Piping Plover Breeding Range Prairie Falcon Breeding Range Purple Martin Breeding Range Rufous Hummingbird Migration Range Sage Sparrow Breeding Range Swainson Hawk Breeding Range Upland Sandpiper Breeding Range Veery Breeding Range Virginia Warbler Breeding Range Western Snowy Plover Breeding Range White-faced Ibis Breeding Range Grouped Layers: Black Bear Black Bear Human Conflict Area Black Bear Fall Concentration Black Bear Summer Concentration Black Bear Overall Range Black-footed Ferret Release Sites Grouped Layers: Black-tailed Prairie Dog Black-tailed Prairie Dog Colony Potential Occurrence Black-tailed Prairie Dog Overall Range Grouped Layers: Bobwhite Quail Bobwhite Quail Concentration Area Bobwhite Quail Overall Range Boreal Toad Overall Range Botta's Pocket Gopher Overall Range Grouped Layers: Columbian Sharp-tailed Grouse Columbian Sharp-tailed Grouse Production Area Columbian Sharp-tailed Grouse Winter Range Columbian Sharp-tailed Grouse Overall Range Dwarf Shrew Overall Range Grouped Layers: Elk Elk Migration Patterns Elk Highway Crossings Elk Summer Concentration Area Elk Summer Range Elk Production Area Elk Limited Use Area Elk Resident Population Area Elk Migration Corridors Elk Severe Winter Range Elk Winter Concentration Area Elk Winter Range Elk Overall Range Grouped Layers: Fish Arkansas Darter HUC 12 Presence Bluehead Sucker HUC 12 Presence Bonytail HUC 12 Presence Brassy Minnow HUC 12 Presence Colorado Pikeminnow HUC 12 Presence Common Shiner HUC 12 Presence Cutthroat Trout HUC 12 Presence Flannelmouth Sucker HUC 12 Presence Flathead Chub HUC 12 Presence Humpback Chub HUC 12 Presence Iowa Darter HUC 12 Presence Lake Chub HUC 12 Presence Mountain Sucker HUC 12 Presence Northern Redbelly Dace HUC 12 Presence Orange-spotted Sunfish HUC 12 Presence Orangethroat Darter HUC 12 Presence Plains Minnow HUC 12 Presence Plains Topminnow HUC 12 Presence Razorback Sucker HUC 12 Presence Rio Grande Chub HUC 12 Presence Rio Grande Sucker HUC 12 Presence Roundtail Chub HUC 12 Presence Southern Redbelly Dace HUC 12 Presence Stonecat HUC 12 Presence Suckermouth Minnow HUC 12 Presence Grouped Layers: Geese Canada Geese Molting Area Canada Geese Brood Concentration Area Canada Geese Foraging Area Canada Geese Production Area Canada Geese Winter Concentration Area Canada Geese Winter Range Snow Geese Winter Range Grouped Layers: Great Blue Heron Great Blue Heron Nesting Area Great Blue Heron Foraging Area Great Blue Heron Historic Nest Area Grouped Layers: Greater Prairie Chicken Greater Prairie Chicken Production Area Greater Prairie Chicken Overall Range Greater Prairie Chicken Historic Range Grouped Layers: Greater Sage Grouse Greater Sage Grouse Brood Area Greater Sage Grouse Production Area Greater Sage Grouse Severe Winter Range Greater Sage Grouse Winter Range Greater Sage Grouse Linkages Greater Sage Grouse Priority and General Habitat Greater Sage Grouse Overall Range Greater Sage Grouse Historic Habitat Gunnison's Prairie Dog Overall Range Grouped Layers: Gunnison's Sage Grouse Gunnison's Sage Grouse Historic Habitat Gunnison's Sage Grouse Brood Area Gunnison's Sage Grouse Production Area Gunnison's Sage Grouse Severe Winter Range Gunnison's Sage Grouse Winter Range Gunnison's Sage Grouse Occupied Habitat Gunnison's Sage Grouse Overall Range Kit Fox Historic Overall Range Grouped Layers: Least Tern Least Tern Production Area Least Tern Foraging Area Grouped Layers: Lesser Prairie Chicken Lesser Prairie Chicken CHAT Priority Areas Lesser Prairie Chicken Estimated Occupied Range Lesser Prairie Chicken Production Area Lesser Prairie Chicken Historic Range Lynx Habitat Grouped Layers: Moose Moose Migration Patterns Moose Priority Habitat Moose Concentration Area Moose Summer Range Moose Winter Range Moose Overall Range Grouped Layers: Mountain Goat Mountain Goat Mineral Lick Mountain Goat Migration Corridors Mountain Goat Production Area Mountain Goat Concentration Area Mountain Goat Summer Range Mountain Goat Winter Range Mountain Goat Overall Range Grouped Layers: Mountain Lion Mountain Lion Human Conflict Area Mountain Lion Peripheral Range Mountain Lion Overall Range Grouped Layers: Mule Deer Mule Deer Migration Patterns Mule Deer Highway Crossing Mule Deer Concentration Area Mule Deer Summer Range Mule Deer Limited Use Area Mule Deer Resident Population Area Mule Deer Migration Corridors Mule Deer Severe Winter Range Mule Deer Winter Concentration Area Mule Deer Winter Range Mule Deer Overall Range New Mexico Jumping Mouse Overall Range Olive-backed Pocket Mouse Overall Range Grouped Layers: Osprey Osprey Nest Sites Osprey Foraging Area Grouped Layers: Peregrine Falcon Peregrine Falcon Nesting Area Peregrine Falcon Potential Nesting Pika Overall Range Grouped Layers: Piping Plover Piping Plover Foraging Area Piping Plover Production Area Grouped Layers: Plains Sharp-tailed Grouse Plains Sharp-tailed Grouse Production Area Plains Sharp-tailed Grouse Overall Range Preble's Meadow Jumping Mouse Overall Range Grouped Layers: Pronghorn Pronghorn Migration Patterns Pronghorn Concentration Area Pronghorn Limited Use Area Pronghorn Resident Population Area Pronghorn Migration Corridors Pronghorn Severe Winter Range Pronghorn Winter Concentration Pronghorn Winter Range Pronghorn Perennial Water Pronghorn Overall Range Pygmy Rabbit Overall Range Pygmy Shrew Overall Range Grouped Layers: Reptiles Black-necked Gartersnake Overall Range Bullsnake Overall Range Coachwhip Overall Range Common Gartersnake Overall Range Common Kingsnake Overall Range Common Lesser Earless Lizard Overall Range Common Sagebrush Lizard Overall Range Common Side-blotched Lizard Overall Range Desert Nightsnake And Chihuahuan Nightsnake Overall Range Desert Spiny Lizard Overall Range Diploid Checkered Whiptail Overall Range Eastern Collared Lizard Overall Range Eastern Hog-nosed Snake Overall Range Glossy Snake Overall Range Great Plains Ratsnake Overall Range Great Plains Skink Overall Range Hernandez's Short-horned Lizard Overall Range Lined Snake Overall Range Long-nosed Leopard Lizard Overall Range Long-nosed Snake Overall Range Massasauga Overall Range Massasauga

BaldEagleActiveNestSites_HalfMile is an ESRI SDE Feature Class showing a 0.5 mile buffer zone around active Bald Eagle (Haliaeetus leucocephalus) nests in Colorado. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35).