SinkholeOdds

Sinkhole risk in Kiowa County, CO: Pockets of it

Pockets of it

Soluble rock at the surface or under thin cover in part of the county.

On soluble rock
30%
At or near the surface
30%
Buried under cover
0%

What to do about a house in Kiowa County

Check the parcel against your state survey sinkhole map, and ask for an inspection if cracks, depressions or sticking doors show up.

That works out to roughly 530 of Kiowa County's 1,768 square miles on soluble rock, 530 of them with the rock at or near the surface. With about 1,392 residents (1 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 383 map points about 2.1 miles apart, so a pocket smaller than that can be missed or overstated.

Read next: why gypsum and salt move faster than limestone, and the signs to look for and how an inspection works.

Counties around Kiowa County

The nearest county rated sinkhole country is Clark County, KS, about 179 miles southeast. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.

What Kiowa County is built on

The largest mapped soluble unit here is the Niobrara Fm (shale), Cretaceous in age, covering about 30% of the county.

The county also lies over the Permian Basin, Anadarko Basin,Dalhart Basin, Palo Duro Basin, a deep salt or gypsum basin. Deep beds rarely cause surface collapse on their own, but wells and mining into them have.

Against the rest of Colorado

Kiowa County ranks 5 of 64 in Colorado for soluble rock at the surface, and sits above 79% of US counties on that measure.