Sinkhole risk in Pittsburg County, OK: No soluble rock mapped

No soluble rock mapped

No soluble bedrock mapped.

On soluble rock: under 1%
At or near the surface: under 1%
Buried under cover: 0%

The next step for one property

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

That works out to roughly 9 of Pittsburg County's 1,306 square miles on soluble rock, 9 of them with the rock at or near the surface. With about 43,395 residents (33 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 269 map points about 2.2 miles apart, so a pocket smaller than that can be missed or overstated.

Two things to read before deciding: how these percentages are measured, and the warning signs that apply anywhere.

Counties around Pittsburg County

The nearest county rated sinkhole country is Cherokee County, OK, about 80 miles northeast. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.

Latimer County, OK 27 mi east · 2% at surface
Hughes County, OK 30 mi west · 0% at surface
McIntosh County, OK 31 mi north · 0% at surface
Coal County, OK 39 mi southwest · 4% at surface
Atoka County, OK 40 mi southwest · 5% at surface
Haskell County, OK 42 mi northeast · 0% at surface

What Pittsburg County is built on

The largest mapped soluble unit here is the Wapanucka Formation and Chickachoc Chert (limestone), Early Pennsylvanian in age, covering about under 1% of the county.

Against the rest of Oklahoma

Pittsburg County ranks 64 of 77 in Oklahoma for soluble rock at the surface, and sits above 54% of US counties on that measure.