Sinkhole risk in Kit Carson County, CO: Not karst, but voids possible

Not karst, but voids possible

No soluble bedrock; some pseudokarst (piping or lava-tube ground).

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

What this means before you buy

Not true karst, but soil piping or lava tubes can still open voids - mention it to an inspector.

Across 2,161 square miles, under one square mile of Kit Carson County maps onto soluble rock. With about 7,080 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 406 map points about 2.3 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: why gypsum and salt move faster than limestone, and how ground with no limestone still opens up.

Counties around Kit Carson County

The nearest county rated sinkhole country is Harlan County, NE, about 180 miles east. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.

Cheyenne County, CO 32 mi south · 0% at surface
Sherman County, KS 47 mi east · 9% at surface
Yuma County, CO 49 mi north · 7% at surface
Wallace County, KS 52 mi southeast · 23% at surface
Lincoln County, CO 53 mi southwest · 0% at surface
Washington County, CO 56 mi northwest · 0% at surface

Against the rest of Colorado

Kit Carson County ranks 54 of 64 in Colorado for soluble rock at the surface, and sits above 0% of US counties on that measure.