Sinkhole risk in Rogers County, OK: Mostly deep or small

Mostly deep or small

Some soluble rock, mostly deeply buried or in a small share of the county.

On soluble rock: 14%
At or near the surface: 14%
Buried under cover: 0%

The next step for one property

Sinkholes are uncommon here; watch for new depressions after heavy rain or leaking pipes.

That works out to roughly 92 of Rogers County's 676 square miles on soluble rock, 92 of them with the rock at or near the surface. With about 101,371 residents (150 per square mile), homes are spread across towns and farmland, and a mapped unit may or may not reach the developed parts. The figures come from 301 map points about 1.5 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Rogers County

The nearest county rated sinkhole country is Delaware County, OK, about 44 miles east. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.

Mayes County, OK 21 mi east · 48% at surface
Tulsa County, OK 26 mi southwest · 9% at surface
Washington County, OK 28 mi northwest · 9% at surface
Nowata County, OK 28 mi north · 34% at surface
Wagoner County, OK 29 mi south · 2% at surface
Craig County, OK 35 mi northeast · 31% at surface

Which formation it is

The largest mapped soluble unit here is the Oolagah Formation (limestone), Middle Pennsylvanian in age, covering about 11% of the county. Next is the Fort Scott Limestone at 3%.

Against the rest of Oklahoma

Rogers County ranks 39 of 77 in Oklahoma for soluble rock at the surface, and sits above 70% of US counties on that measure.