Sinkhole risk in Bennett 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 Bennett County

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

Across 1,185 square miles, under one square mile of Bennett County maps onto soluble rock. With about 3,289 residents (3 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 388 map points about 1.7 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Bennett County

The nearest county rated sinkhole country is Dawes County, NE, about 81 miles southwest. 1 of the 6 closest counties land in the same band; the ground changes quickly around here.

Jackson County, SD 34 mi north · 0% at surface
Oglala Lakota County, SD 46 mi west · 4% at surface
Todd County, SD 49 mi east · 0% at surface
Cherry County, NE 53 mi southeast · 0% at surface
Mellette County, SD 54 mi northeast · 0% at surface
Sheridan County, NE 58 mi southwest · 2% at surface

Against the rest of South Dakota

Bennett County ranks 16 of 66 in South Dakota for soluble rock at the surface, and sits above 0% of US counties on that measure.