Sinkhole risk in Gem County, ID: 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 560 square miles, under one square mile of Gem County maps onto soluble rock. With about 21,857 residents (39 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 424 map points about 1.1 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 Gem County

The nearest county rated sinkhole country is Emery County, UT, about 456 miles southeast. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.

Payette County, ID 18 mi west · 0% at surface
Washington County, ID 33 mi northwest · 0% at surface
Canyon County, ID 34 mi southwest · 0% at surface
Boise County, ID 34 mi east · 0% at surface
Ada County, ID 43 mi south · 0% at surface
Adams County, ID 56 mi north · under 1% at surface

Against the rest of Idaho

Gem County ranks 34 of 44 in Idaho for soluble rock at the surface, and sits above 0% of US counties on that measure.