Sinkhole risk in Conejos County, CO: Not karst, but voids possible

Not karst, but voids possible

No soluble bedrock; some pseudokarst (piping or lava-tube ground).

On soluble rock: 0%
At or near the surface: 0%
Buried under cover: 0%

What to do about a house in Conejos County

Not true karst, but soil piping or lava tubes can still open voids - mention it to an inspector.

Across 1,287 square miles, under one square mile of Conejos County maps onto soluble rock. With about 7,549 residents (6 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 349 map points about 1.9 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Conejos County

The nearest county rated sinkhole country is Emery County, UT, about 276 miles northwest. 1 of the 6 closest counties land in the same band; the ground changes quickly around here.

Rio Grande County, CO 24 mi northwest · 0% at surface
Alamosa County, CO 33 mi northeast · 0% at surface
Costilla County, CO 41 mi east · 0% at surface
Archuleta County, CO 48 mi west · 0% at surface
Mineral County, CO 51 mi northwest · 0% at surface
Taos County, NM 53 mi southeast · 19% at surface

Against the rest of Colorado

Conejos County ranks 47 of 64 in Colorado for soluble rock at the surface, and sits above 0% of US counties on that measure.