Sinkhole risk in Putnam County, WV: 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 this means before you buy

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

Across 346 square miles, under one square mile of Putnam County maps onto soluble rock. With about 57,067 residents (165 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 249 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 Putnam County

The nearest county rated sinkhole country is Summers County, WV, about 82 miles southeast. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Mason County, WV 19 mi north · 0% at surface
Cabell County, WV 19 mi west · 0% at surface
Kanawha County, WV 24 mi southeast · 0% at surface
Lincoln County, WV 25 mi south · 0% at surface
Jackson County, WV 26 mi northeast · 0% at surface
Gallia County, OH 30 mi northwest · 0% at surface

Against the rest of West Virginia

Putnam County ranks 45 of 55 in West Virginia for soluble rock at the surface, and sits above 0% of US counties on that measure.