Showing 15 most frequently observed species out of 40 total documented species.
Fawnsfoot
mapleleaf mussel
deertoe
Wabash pigtoe
threeridge
yellow sandshell
Queen
Key Deer
Flamed Tigersnail
white heelsplitter
plain pocketbook
pink heelsplitter
lesser yellowlegs
pink papershell
Get all 40 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Download a professional PDF field guide featuring all the species found in Union County, South Dakota. Perfect for outdoor adventures, education, and nature exploration.
Download a professional PDF field guide featuring all the species found in Union County, South Dakota. Perfect for outdoor adventures, education, and nature exploration.
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Explore 5 documented locations in Union County, South Dakota. Each area offers unique wildlife viewing opportunities with varying biodiversity levels.
Species counts represent documented wildlife observations from citizen science contributions. Higher counts often indicate areas with diverse habitats, active monitoring, or significant ecological importance. Each location offers unique opportunities to connect with Union County's natural heritage.