Sinkhole risk in Hinsdale County, CO: 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 3 of Hinsdale County's 1,117 square miles on soluble rock, 3 of them with the rock at or near the surface. With about 747 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 290 map points about 2.0 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Hinsdale County

The nearest county rated sinkhole country is Emery County, UT, about 199 miles northwest. 4 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

San Juan County, CO 16 mi west · 1% at surface
Mineral County, CO 28 mi southeast · 0% at surface
Ouray County, CO 32 mi northwest · under 1% at surface
La Plata County, CO 44 mi southwest · 2% at surface
Archuleta County, CO 46 mi southeast · 0% at surface
Rio Grande County, CO 56 mi southeast · 0% at surface

What Hinsdale County is built on

The largest mapped soluble unit here is the Leadville Limestone, Gilman Sandstone, Dyer Dolomite, and Parting Fm (limestone), Devonian-Ordivician in age, covering about under 1% of the county.

Against the rest of Colorado

Hinsdale County ranks 37 of 64 in Colorado for soluble rock at the surface, and sits above 51% of US counties on that measure.