Sinkhole risk in Glenn County, CA: 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%

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.

Across 1,314 square miles, under one square mile of Glenn County maps onto soluble rock. With about 28,304 residents (22 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 302 map points about 2.1 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 Glenn County

The nearest county rated sinkhole country is Emery County, UT, about 625 miles east. 4 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Colusa County, CA 31 mi south · 0% at surface
Tehama County, CA 37 mi north · 1% at surface
Lake County, CA 39 mi southwest · 2% at surface
Butte County, CA 43 mi east · under 1% at surface
Sutter County, CA 54 mi southeast · 0% at surface
Mendocino County, CA 57 mi west · 0% at surface

Against the rest of California

Glenn County ranks 34 of 58 in California for soluble rock at the surface, and sits above 0% of US counties on that measure.