This is a layer package created by the Colorado Parks and Wildlife GIS Unit in 2017 for distributing Colorado state parks and wildlife GIS data for public distribution.

This file was updated on February 7, 2017.

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

Updated December, 2023HIGHWAY CROSSING:Those areas where elk movements traditionally cross roads, presenting potential conflicts between elk and motorists.LIMITED USE AREA:An area within the overall range which is occasionally inhabited by elk and/or contains a small scattered population of elk.MIGRATION CORRIDORS:A specific geographic area that facilitates movement between seasonal ranges and receives higher use than the surrounding landscape, relative to herd or population use, and loss of which would disrupt migration. Starting in 2023 and moving forward, Brownian bridge model of movement data, where available, will be included in this layer. This represents a change in the methodology from how these data had previously been generated.OVERALL RANGE:The area which encompasses all known seasonal activity areas within the observed range of an elk population.PRODUCTION AREA:That part of the overall range of elk occupied by the females from May 15 to June 15 for calving. (Only known areas are mapped and this does not include all production areas for the DAU).RESIDENT POPULATION:An area used year-round by a population of elk. Individuals could be found in any part of the area at any time of the year; the area cannot be subdivided into seasonal ranges. It is most likely included within the overall range of the larger population.SEVERE WINTER:That part of the range of a species where 90 percent of the individuals are located when the annual snowpack is at its maximum and/or temperatures are at a minimum in the two worst winters out of ten. The winter of 1983-84 is a good example of a severe winter.SUMMER CONCENTRATION:Those areas where elk concentrate from mid-June through mid-August. High quality forage, security, and lack of disturbance are characteristics of these areas to meet the high energy demands of lactation, calf rearing, antler growth, and general preparation for the rigors of fall and winter.SUMMER RANGE:That part of the range of a species where 90% of the individuals are located between spring green-up and the first heavy snowfall, or during a site specific period of summer as defined for each DAU. Summer range is not necessarily exclusive of winter range; in some areas winter range and summer range may overlap.WINTER CONCENTRATION:That part of the winter range of a species where densities are at least 200% greater than the surrounding winter range density during the same period used to define winter range in the average five winters out of ten.WINTER RANGE:That part of the overall range of a species where 90 percent of the individuals are located 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. Winter range is not delineated for Elk on the Eastern Plains.This information was derived from Colorado Parks and Wildlife field personnel. Data was captured by digitizing through a SmartBoard Interactive Whiteboard using topographic maps and NAIP imagery at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). These data are updated on a four year rotation with one of the four Colorado Parks and Wildlife Regions updated each year. These data are not updated on a statewide level annually.