Reptiles & Amphibians of Denver, Colorado
The reptiles & amphibians most often spotted near Denver, ranked by recent research-grade observations.
15,292
recent observations
42
species listed
42
reptiles & amphibians
Naturalists have logged 15,292 research-grade observations across the 42 most-recorded species near Denver. The most frequently seen is the Gopher Snake, with 2,199 recorded sightings.
Most-observed reptiles & amphibians near Denver
Gopher Snake
Pituophis catenifer
2,199 observations
Western Terrestrial Garter Snake
Thamnophis elegans
2,172 observations
Woodhouse's Toad
Anaxyrus woodhousii
1,952 observations
American Bullfrog
Lithobates catesbeianus
1,198 observations
Prairie Rattlesnake
Crotalus viridis
894 observations
Prairie Lizard
Sceloporus consobrinus
789 observations · iNaturalist
Painted Turtle
Chrysemys picta
775 observations
Pond Slider
Trachemys scripta
758 observations
Plains Garter Snake
Thamnophis radix
696 observations
North American Racer
Coluber constrictor
674 observations
Common Snapping Turtle
Chelydra serpentina
606 observations
Six-lined Racerunner
Aspidoscelis sexlineatus
580 observations · iNaturalist
Boreal Chorus Frog
Pseudacris maculata
494 observations
Western Tiger Salamander
Ambystoma mavortium
303 observations · iNaturalist
Northern Leopard Frog
Lithobates pipiens
235 observations
Lined Snake
Tropidoclonion lineatum
166 observations
Common Watersnake
Nerodia sipedon
148 observations
Western Milksnake
Lampropeltis gentilis
147 observations · iNaturalist
Common Garter Snake
Thamnophis sirtalis
114 observations
Spiny Softshell
Apalone spinifera
89 observations
Smooth Greensnake
Opheodrys vernalis
61 observations
Plains Spadefoot
Spea bombifrons
47 observations
Many-lined Skink
Plestiodon multivirgatus
36 observations
Greater Short-horned Lizard
Phrynosoma hernandesi
34 observations
Plains Hognose Snake
Heterodon nasicus
32 observations
Colorado Checkered Whiptail
Aspidoscelis neotesselatus
29 observations · iNaturalist
Ornate Box Turtle
Terrapene ornata
24 observations
Western Earless Lizard
Holbrookia maculata
11 observations
Plains Black-headed Snake
Tantilla nigriceps
7 observations · iNaturalist
Great Plains Toad
Anaxyrus cognatus
4 observations
False Map Turtle
Graptemys pseudogeographica
3 observations
Three-toed Box Turtle
Terrapene triunguis
3 observations · iNaturalist
Northern Map Turtle
Graptemys geographica
2 observations
Brown Anole
Anolis sagrei
2 observations
Greenhouse Frog
Eleutherodactylus planirostris
1 observation
Pacific chorus frog
Pseudacris regilla
1 observation
Green Anole
Anolis carolinensis
1 observation
Common Bluetongue
Tiliqua scincoides
1 observation · iNaturalist
Red Cornsnake
Pantherophis guttatus
1 observation
Ouachita Map Turtle
Graptemys ouachitensis
1 observation · iNaturalist
Great Plains Ground Snake
Sonora episcopa
1 observation · iNaturalist
Green Treefrog
Dryophytes cinereus
1 observation · iNaturalist
Reptiles & Amphibians in nearby places
Out spotting reptiles & amphibians near Denver?
Take Huck with you. Identify any reptiles & amphibian you find in seconds and build your collection.
Get HuckLove reptiles & amphibians? Get Huck field notes
Spotting tips, new species, and the best of what people are finding in the wild - straight to your inbox.