Sinkhole risk in Grant County, MN: 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 Grant County

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

Across 548 square miles, under one square mile of Grant County maps onto soluble rock. With about 6,109 residents (11 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 399 map points about 1.2 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: how these percentages are measured, and the warning signs that apply anywhere.

Counties around Grant County

The nearest county rated sinkhole country is Knox County, NE, about 246 miles southwest. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Stevens County, MN 23 mi south · 0% at surface
Traverse County, MN 25 mi southwest · 0% at surface
Douglas County, MN 26 mi east · 0% at surface
Otter Tail County, MN 36 mi northeast · 0% at surface
Pope County, MN 36 mi southeast · 0% at surface
Wilkin County, MN 37 mi northwest · 0% at surface

Against the rest of Minnesota

Grant County ranks 31 of 87 in Minnesota for soluble rock at the surface, and sits above 0% of US counties on that measure.