This site will look much better in a browser that supports web standards, but it is accessible to any browser or Internet device.

Osage County, Missouri

Maps

Landmark Map

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

Natural Divisions Locality Map

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

Ecological Drainage Unit Locality Map

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

Major Watersheds Locality Map

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

Major Rivers Locality Map

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

Level I Ecoregion Locality Map

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

Level II Ecoregion Locality Map

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

Level III Ecoregion Locality Map

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

Level IV Ecoregion Locality Map

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

Presettlement Prairie Locality Map

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

Historical Vegetation Map

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

WaterPrairieBarrens / Scrub
ForestWoodlandOpen Woodland

Geology Locality Map

Geology locality map for Osage County, Missouri
Geology locality map for Osage 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

Osage County has a total of 170 valid, non-duplicated collections representing 58 species and 76 localities. There are a total of 49 collectors and 79 collection dates for the county. This results in a total of 85 expeditions for the county, a measure of unique date / collector(s) combinations. The county's earliest collection year is 1934 and its most recent collection year is 2024. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 5 and October 21, respectively. If you have a new record to report for Osage County, read the New Records section of the FAQ.

Collection Summary by Species

Collection summary for Osage 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 4 7 4 4 4 1988 2006
Agkistrodon contortrix Eastern Copperhead 4 4 5 4 4 1938 2012
Ambystoma maculatum Spotted Salamander 2 2 3 2 2 1983 1997
Ambystoma opacum Marbled Salamander 2 2 2 2 2 1993 1997
Ambystoma texanum Small-mouthed Salamander 1 1 1 1 1 1976 1976
Anaxyrus americanus American Toad 1 1 3 1 1 2006 2006
Anaxyrus fowleri Fowler's Toad 1 1 1 1 1 2015 2015
Apalone mutica Midland Smooth Softshell 1 1 3 1 1 2005 2005
Apalone spinifera Northern Spiny Softshell 2 2 5 2 2 2006 2006
Aspidoscelis sexlineatus Prairie Racerunner 1 1 1 1 1 1991 1991
Carphophis vermis Western Wormsnake 2 2 2 2 2 1995 2015
Chelydra serpentina North American Snapping Turtle 1 1 1 1 1 1991 1991
Chrysemys picta Western Painted Turtle 1 2 2 1 1 1999 1999
Coluber constrictor North American Racer 2 2 2 2 2 2000 2010
Crotalus horridus Timber Rattlesnake 2 2 2 2 2 1996 2006
Crotaphytus collaris Eastern Collared Lizard 1 1 1 1 1 1984 1984
Cryptobranchus alleganiensis Hellbender 1 1 1 1 1 1983 1983
Diadophis punctatus Ring-necked Snake 1 1 1 1 1 2005 2005
Dryophytes versicolor Gray Treefrog 1 2 1 1 1 2013 2013
Gastrophryne carolinensis Eastern Narrow-mouthed Toad 2 2 2 2 2 1983 1997
Graptemys geographica Northern Map Turtle 1 1 1 1 1
Graptemys ouachitensis Ouachita Map Turtle 1 1 3 1 1 2006 2006
Heterodon platirhinos Eastern Hog-nosed Snake 1 1 3 1 1 2020 2020
Lampropeltis calligaster Prairie Kingsnake 2 2 2 2 2 1994 2004
Lampropeltis holbrooki Speckled Kingsnake 2 2 2 2 2 1945 2005
Lampropeltis triangulum Eastern Milksnake 2 2 2 2 2 1983 2024
Lithobates catesbeianus North American Bullfrog 4 5 3 4 4 1961 2017
Lithobates clamitans North American Green Frog 1 1 1 1 1 1999 1999
Lithobates palustris Pickerel Frog 1 1 1 1 1 1962 1962
Lithobates sphenocephalus Coastal Plains Leopard Frog 7 8 6 6 6 1989 2003
Masticophis flagellum Eastern Coachwhip 2 2 1 1 1
Necturus maculosus Mudpuppy 1 1 1 1 1 1983 1983
Nerodia sipedon Common Watersnake 2 2 2 2 2 1961 1967
Notophthalmus viridescens Central Newt 1 1 1 1 1 1997 1997
Opheodrys aestivus Northern Rough Greensnake 3 3 3 3 3 1982 2019
Ophisaurus attenuatus Western Slender Glass Lizard 1 1 1 1 1 1983 1983
Pantherophis emoryi Great Plains Ratsnake 2 2 3 2 2 1993 2006
Pantherophis obsoletus Western Ratsnake 4 4 3 4 4 1991 2010
Plestiodon anthracinus Southern Coal Skink 1 1 1 1 1 2021 2021
Plestiodon fasciatus Common Five-lined Skink 1 1 1 1 1 1982 1982
Plestiodon laticeps Broad-headed Skink 1 1 2 1 1 2005 2005
Plethodon albagula Western Slimy Salamander 2 2 3 2 2 1991 2005
Plethodon serratus Southern Red-backed Salamander 1 1 1 1 1 1995 1995
Pseudacris crucifer Spring Peeper 1 2 2 1 1 1997 1997
Pseudemys concinna Eastern River Cooter 1 1 1 1 1 1983 1983
Sceloporus consobrinus Prairie Lizard 4 61 5 8 11 1967 2013
Scincella lateralis Little Brown Skink 1 1 1 1 1 1983 1983
Spea bombifrons Plains Spadefoot 2 3 1 1 1 1976 1976
Sternotherus odoratus Eastern Musk Turtle 1 1 2 1 1 2006 2006
Storeria dekayi DeKay's Brownsnake 1 1 1 1 1 1991 1991
Storeria occipitomaculata Red-bellied Snake 1 1 1 1 1 1936 1936
Tantilla gracilis Flat-headed Snake 2 2 4 2 2 1982 1999
Terrapene triunguis Three-toed Box Turtle 3 3 3 3 3 1934 2015
Thamnophis proximus Orange-striped Ribbonsnake 2 2 2 2 2 1997 2010
Thamnophis sirtalis Common Gartersnake 2 2 2 2 2 1992 2015
Trachemys scripta Red-eared Slider 3 3 3 3 3 1999 2010
Virginia striatula Rough Earthsnake 2 2 2 2 2 1982 1991
Virginia valeriae Western Smooth Earthsnake 1 1 2 1 1 2011 2011

Potential Species Records

Potential species for Osage 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 Anaxyrus cognatus Great Plains Toad Same Level IV ecoregion, within 5 miles River Hills
2 Anaxyrus woodhousii Rocky Mountain Toad Same Level IV ecoregion, within 5 miles Osage/Gasconade Hills
2 Eurycea longicauda Long-tailed Salamander Same Level IV ecoregion, within 5 miles Osage/Gasconade Hills
2 Eurycea lucifuga Cave Salamander Same Level IV ecoregion, within 5 miles Osage/Gasconade Hills
2 Gastrophryne olivacea Western Narrow-mouthed Toad Same Level IV ecoregion, within 5 miles River Hills
2 Graptemys pseudogeographica False Map Turtle Same watershed, within 5 miles Lower Gasconade
2 Graptemys pseudogeographica False Map Turtle Same watershed, within 5 miles Lower Missouri-Moreau
2 Macrochelys temminckii Western Alligator Snapping Turtle Same watershed, within 5 miles Lower Missouri-Moreau
2 Pseudacris maculata Boreal Chorus Frog Same Level IV ecoregion, within 5 miles River Hills
4 Ambystoma annulatum Ringed Salamander Same Level IV ecoregion, within 10 miles Central Plateau
4 Lithobates blairi Plains Leopard Frog Same Level IV ecoregion, within 10 miles River Hills
4 Terrapene ornata Ornate Box Turtle Same Level IV ecoregion, within 10 miles River Hills
4 Tropidoclonion lineatum Lined Snake Same Level IV ecoregion, within 10 miles Osage/Gasconade Hills
6 Agkistrodon piscivorus Northern Cottonmouth Same watershed, within 20 miles Lower Osage
6 Cemophora coccinea Northern Scarletsnake Same Level IV ecoregion, within 20 miles Central Plateau
6 Eurycea nerea Northern Grotto Salamander Same Level IV ecoregion, within 20 miles Osage/Gasconade Hills
6 Hemidactylium scutatum Four-toed Salamander Same Level IV ecoregion, within 20 miles River Hills
6 Lithobates areolatus Northern Crawfish Frog Same Level IV ecoregion, within 20 miles River Hills
6 Lithobates sylvaticus Wood Frog Same Level IV ecoregion, within 20 miles River Hills
8 Ambystoma tigrinum Eastern Tiger Salamander Same Level IV ecoregion, within 30 miles Central Plateau
8 Dryophytes chrysoscelis Cope's Gray Treefrog Same Level IV ecoregion, within 30 miles River Hills
8 Eurycea tynerensis Oklahoma Salamander Same Level IV ecoregion, within 30 miles Osage/Gasconade Hills
10 Opheodrys vernalis Smooth Greensnake Same Level IV ecoregion, adjacent county River Hills
10 Thamnophis radix Plains Gartersnake Same Level IV ecoregion, adjacent county River Hills

Checklist

All MOHAP publications are released in portable document format (PDF), an ISO standard. You must download and install a reader (click icon below) to view these documents. A state checklist, including all counties, is available on the publications page.