Sinkhole risk in Windsor County, VT: 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: 24%
At or near the surface: 0%
Buried under cover: 24%

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 233 of Windsor County's 969 square miles on soluble rock. With about 57,697 residents (60 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 505 map points about 1.4 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Windsor County

The nearest county rated sinkhole country is Union County, PA, about 291 miles southwest. 5 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Rutland County, VT 23 mi west · under 1% at surface
Sullivan County, NH 24 mi southeast · 0% at surface
Orange County, VT 32 mi north · 0% at surface
Windham County, VT 40 mi south · 0% at surface
Addison County, VT 42 mi northwest · under 1% at surface
Grafton County, NH 45 mi northeast · 0% at surface

Which formation it is

The largest mapped soluble unit here is the Waits River Formation (limestone), Devonian in age, covering about 24% of the county. Next is the Cavendish Formation, Dolomite and Marble at under 1%.

Against the rest of Vermont

Windsor County ranks 14 of 14 in Vermont for soluble rock at the surface, and sits above 0% of US counties on that measure.