Sinkhole risk in Mariposa 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 1,449 square miles, under one square mile of Mariposa County maps onto soluble rock. With about 17,048 residents (12 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 510 map points about 1.7 miles apart, so a pocket smaller than that can be missed or overstated.
Read next: how these percentages are measured, and the warning signs that apply anywhere.
Counties around Mariposa County
The nearest county rated sinkhole country is Emery County, UT, about 508 miles east. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.
- Madera County, CA 27 mi south · 0% at surface
- Tuolumne County, CA 31 mi north · under 1% at surface
- Merced County, CA 52 mi southwest · 0% at surface
- Calaveras County, CA 55 mi northwest · under 1% at surface
- Fresno County, CA 58 mi south · 0% at surface
- Stanislaus County, CA 60 mi west · 0% at surface
Against the rest of California
Mariposa County ranks 40 of 58 in California for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Trinity County 25%
- Inyo County 17%
- Ventura County 9%
- Shasta County 9%
- Siskiyou County 9%