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Randolph County, Missouri

Maps

Landmark Map

Landmark locality map for Randolph County, Missouri
Landmark locality map for Randolph County, Missouri
Map created 15 April 2026.

Interstate HighwayRailroadUS Army Corps of Engineers
US HighwayDepartment of ConservationUS Fish and Wildlife Service
State HighwayDepartment of Natural ResourcesNational Park Service
County HighwayUS Forest ServiceUS Department of Defense

Locator Map

Locator map for Randolph County, Missouri
Locator map for Randolph County, Missouri
Map created 15 April 2026.

Natural Divisions Locality Map

Natural divisions and sections locality map for Randolph County, Missouri
Natural Divisions locality map for Randolph County, Missouri
Map created 15 April 2026.

Ecological Drainage Unit Locality Map

Ecological drainage unit locality map for Randolph County, Missouri
Ecological Drainage Units locality map for Randolph County, Missouri
Map created 15 April 2026.

Major Watersheds Locality Map

Major watersheds locality map for Randolph County, Missouri
Major Watersheds locality map for Randolph County, Missouri
Map created 15 April 2026.

Major Rivers Locality Map

Major rivers locality map for Randolph County, Missouri
Major Rivers locality map for Randolph County, Missouri
Map created 15 April 2026.

Level I Ecoregion Locality Map

Level I Ecoregion locality map for Randolph County, Missouri
Level I Ecoregion locality map for Randolph County, Missouri
Map created 15 April 2026.

Level II Ecoregion Locality Map

Level II Ecoregion locality map for Randolph County, Missouri
Level II Ecoregion locality map for Randolph County, Missouri
Map created 15 April 2026.

Level III Ecoregion Locality Map

Level III Ecoregion locality map for Randolph County, Missouri
Level III Ecoregion locality map for Randolph County, Missouri
Map created 15 April 2026.

Level IV Ecoregion Locality Map

Level IV Ecoregion locality map for Randolph County, Missouri
Level IV Ecoregion locality map for Randolph County, Missouri
Map created 15 April 2026.

Presettlement Prairie Locality Map

Presettlement prairie locality map for Randolph County, Missouri
Presettlement Prairie locality map for Randolph County, Missouri
Map created 15 April 2026.

Historical Vegetation Map

Historical vegetation map for Randolph County, Missouri
Historical Vegetation map for Randolph County, Missouri
Map created 15 April 2026.

WaterPrairieBarrens / Scrub
ForestWoodlandOpen Woodland

Geology Locality Map

Geology locality map for Randolph County, Missouri
Geology locality map for Randolph County, Missouri
Map created 15 April 2026.

AlluviumSandstoneDolomiteLimestone
ClaySandstone / LimestoneDolomite / LimestoneLimestone / Sandstone
IgneousSandstone / DolomiteDolomite / ShaleLimestone / Shale
Limestone / Sandstone / Shale

Species List

Salamanders (Caudata)

Frogs (Anura)

Lizards (Squamata, "Lizards")

Snakes (Squamata, "Snakes")

Turtles (Testudines)

Collection Summary

Randolph County has a total of 142 valid, non-duplicated collections representing 43 species and 90 localities. There are a total of 21 collectors and 67 collection dates for the county. This results in a total of 70 expeditions for the county, a measure of unique date / collector(s) combinations. The county's earliest collection year is 1955 and its most recent collection year is 2025. The earliest and latest collection dates (independent of earliest and most recent collection years) are March 4 and November 24, respectively. If you have a new record to report for Randolph County, read the New Records section of the FAQ.

Collection Summary by Species

Collection summary for Randolph County by species. Some values are unavailable since some records are represented solely by historical literature reports, which sometimes lack complete collecting data. Click on a species or common name to view more information about that species. Click on column headings to sort by that column.
Species Common Name Localities Collections Collectors Dates Expeditions Earliest Year Latest Year
Acris blanchardi Blanchard's Cricket Frog 2 2 2 2 2 1994 1999
Agkistrodon contortrix Eastern Copperhead 1 2 1 1 1
Ambystoma maculatum Spotted Salamander 5 7 5 5 5 1987 2002
Ambystoma opacum Marbled Salamander 3 5 2 3 3 2018 2023
Ambystoma texanum Small-mouthed Salamander 3 6 3 5 5 1994 2001
Ambystoma tigrinum Eastern Tiger Salamander 1 1 1 1 1 1955 1955
Anaxyrus americanus American Toad 5 9 2 4 4 2001 2020
Apalone spinifera Northern Spiny Softshell 2 2 1 2 2 2001 2022
Aspidoscelis sexlineatus Prairie Racerunner 1 2 1 1 1
Carphophis vermis Western Wormsnake 1 1 1 1 1 2002 2002
Chelydra serpentina North American Snapping Turtle 4 5 1 4 4 2001 2025
Chrysemys picta Western Painted Turtle 6 8 3 5 5 1999 2016
Coluber constrictor North American Racer 4 4 2 4 4 1961 2013
Diadophis punctatus Ring-necked Snake 4 4 2 4 4 1983 2007
Dryophytes versicolor Gray Treefrog 1 1 1 1 1 2001 2001
Graptemys geographica Northern Map Turtle 1 2 1 1 1 2020 2020
Heterodon platirhinos Eastern Hog-nosed Snake 4 4 3 4 4 2001 2004
Lampropeltis calligaster Prairie Kingsnake 3 3 2 3 3 1961 2021
Lampropeltis triangulum Eastern Milksnake 3 3 1 3 3 2000 2023
Lithobates blairi Plains Leopard Frog 1 1 1 1 1 2004 2004
Lithobates catesbeianus North American Bullfrog 1 1 1 1 1 1994 1994
Lithobates clamitans North American Green Frog 1 2 2 1 1 1997 1997
Lithobates sphenocephalus Coastal Plains Leopard Frog 3 3 2 3 3 1999 2002
Lithobates sylvaticus Wood Frog 1 2 1 1 1 2024 2024
Nerodia sipedon Common Watersnake 4 4 2 4 4 1992 2002
Notophthalmus viridescens Central Newt 2 6 4 2 2 1987 2001
Opheodrys aestivus Northern Rough Greensnake 3 3 1 3 3 1999 2001
Opheodrys vernalis Smooth Greensnake 1 3 1 1 1
Pantherophis obsoletus Western Ratsnake 6 6 3 6 6 2000 2025
Plestiodon fasciatus Common Five-lined Skink 2 3 1 2 2 2000 2000
Plestiodon laticeps Broad-headed Skink 1 1 1 1 1 2003 2003
Pseudacris crucifer Spring Peeper 1 2 1 1 1 2001 2001
Pseudacris maculata Boreal Chorus Frog 1 1 1 1 1 2002 2002
Sceloporus consobrinus Prairie Lizard 2 2 1 2 2 2000 2001
Sistrurus tergeminus Prairie Massasauga 1 2 1 1 1
Storeria dekayi DeKay's Brownsnake 3 3 1 2 2 1999 2002
Storeria occipitomaculata Red-bellied Snake 2 2 1 2 2 2001 2004
Terrapene ornata Ornate Box Turtle 3 4 2 3 3 2001 2011
Terrapene triunguis Three-toed Box Turtle 3 3 1 3 3 2000 2024
Thamnophis proximus Orange-striped Ribbonsnake 4 4 1 4 4 1999 2011
Thamnophis sirtalis Common Gartersnake 8 8 3 8 8 1983 2024
Trachemys scripta Red-eared Slider 1 3 1 1 1 2021 2021
Virginia valeriae Western Smooth Earthsnake 2 2 3 2 2 2002 2020

Potential Species Records

Potential species for Randolph County. Species are listed in descending order of their likelihood of occurrence within the county. Click on a species or common name to view more information about that species. Click on column headings to sort by that column.
Likelihood Species Common Name Rationale Ecoregion / Watershed
2 Lithobates areolatus Northern Crawfish Frog Same Level IV ecoregion, within 5 miles Claypan Prairie
4 Dryophytes chrysoscelis Cope's Gray Treefrog Same Level IV ecoregion, within 10 miles Loess Flats and Till Plains
4 Lithobates palustris Pickerel Frog Same Level IV ecoregion, within 10 miles Claypan Prairie
6 Anaxyrus fowleri Fowler's Toad Same Level IV ecoregion, within 20 miles River Hills
6 Anaxyrus fowleri Fowler's Toad Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Anaxyrus fowleri Fowler's Toad Same Level IV ecoregion, within 20 miles Claypan Prairie
6 Apalone mutica Midland Smooth Softshell Same watershed, within 20 miles Lower Missouri-Moreau
6 Crotalus horridus Timber Rattlesnake Same Level IV ecoregion, within 20 miles River Hills
6 Crotalus horridus Timber Rattlesnake Same Level IV ecoregion, within 20 miles Claypan Prairie
6 Graptemys pseudogeographica False Map Turtle Same watershed, within 20 miles Lower Missouri-Moreau
6 Lampropeltis holbrooki Speckled Kingsnake Same Level IV ecoregion, within 20 miles Claypan Prairie
6 Nerodia erythrogaster Yellow-bellied Watersnake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Nerodia rhombifer Northern Diamond-backed Watersnake Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Ophisaurus attenuatus Western Slender Glass Lizard Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Ophisaurus attenuatus Western Slender Glass Lizard Same Level IV ecoregion, within 20 miles Claypan Prairie
6 Pantherophis emoryi Great Plains Ratsnake Same Level IV ecoregion, within 20 miles Claypan Prairie
6 Pituophis catenifer Bullsnake Same Level IV ecoregion, within 20 miles Claypan Prairie
6 Regina grahamii Graham's Crawfish Snake Same watershed, within 20 miles Little Chariton
6 Scincella lateralis Little Brown Skink Same Level IV ecoregion, within 20 miles Loess Flats and Till Plains
6 Spea bombifrons Plains Spadefoot Same Level IV ecoregion, within 20 miles River Hills
8 Anaxyrus cognatus Great Plains Toad Same Level IV ecoregion, within 30 miles River Hills
8 Anaxyrus woodhousii Rocky Mountain Toad Same Level IV ecoregion, within 30 miles River Hills
8 Eurycea longicauda Long-tailed Salamander Same Level IV ecoregion, within 30 miles River Hills
8 Masticophis flagellum Eastern Coachwhip Same Level IV ecoregion, within 30 miles Claypan Prairie
8 Thamnophis radix Plains Gartersnake Same Level IV ecoregion, within 30 miles Loess Flats and Till Plains
10 Gastrophryne olivacea Western Narrow-mouthed Toad Same Level IV ecoregion, adjacent county River Hills
10 Gastrophryne olivacea Western Narrow-mouthed Toad Same Level IV ecoregion, adjacent county Loess Flats and Till Plains
10 Plethodon albagula Western Slimy Salamander Same Level IV ecoregion, adjacent county River Hills

Checklist

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