Sinkhole risk in Forest County, PA: 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 427 square miles, under one square mile of Forest County maps onto soluble rock. With about 6,601 residents (15 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 299 map points about 1.2 miles apart, so a pocket smaller than that can be missed or overstated.
Two things to read before deciding: why gypsum and salt move faster than limestone, and how these percentages are measured.
Counties around Forest County
The nearest county rated sinkhole country is Union County, PA, about 120 miles east. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.
- Warren County, PA 22 mi north · 0% at surface
- Clarion County, PA 24 mi south · 36% at surface
- Venango County, PA 28 mi west · 5% at surface
- Jefferson County, PA 29 mi southeast · 24% at surface
- Elk County, PA 31 mi east · 0% at surface
- McKean County, PA 41 mi northeast · 0% at surface
Against the rest of Pennsylvania
Forest County ranks 54 of 67 in Pennsylvania for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Union County 53%
- Cumberland County 48%
- Lancaster County 46%
- Juniata County 45%
- Mifflin County 45%