Sinkhole risk in Edmunds County, SD: No soluble rock mapped

No soluble rock mapped

No soluble bedrock mapped.

On soluble rock: 0%
At or near the surface: 0%
Buried under cover: 0%

What to do about a house in Edmunds County

No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.

Across 1,126 square miles, under one square mile of Edmunds County maps onto soluble rock. With about 4,027 residents (4 per square mile), much of the land is open, and the mapped rock may sit far from where people actually live. The figures come from 408 map points about 1.7 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Edmunds County

The nearest county rated sinkhole country is Boyd County, NE, about 175 miles south. 5 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Faulk County, SD 24 mi south · 0% at surface
McPherson County, SD 26 mi north · 0% at surface
Walworth County, SD 40 mi west · 0% at surface
Brown County, SD 43 mi east · 0% at surface
Potter County, SD 44 mi southwest · 0% at surface
Campbell County, SD 46 mi northwest · 0% at surface

Against the rest of South Dakota

Edmunds County ranks 29 of 66 in South Dakota for soluble rock at the surface, and sits above 0% of US counties on that measure.