Sinkhole risk in Graham County, NC: 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 to do about a house in Graham County
No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.
Across 292 square miles, under one square mile of Graham County maps onto soluble rock. With about 8,179 residents (28 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 281 map points about 1.0 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 Graham County
The nearest county rated sinkhole country is Blount County, TN, about 24 miles north, close enough that the same rock may run under the county line. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.
- Cherokee County, NC 20 mi southwest · 4% at surface
- Clay County, NC 21 mi south · under 1% at surface
- Blount County, TN 24 mi north · 58% at surface
- Monroe County, TN 25 mi west · 37% at surface
- Swain County, NC 26 mi northeast · 2% at surface
- Macon County, NC 27 mi southeast · 0% at surface
Against the rest of North Carolina
Graham County ranks 78 of 100 in North Carolina for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Duplin County 93%
- Jones County 92%
- Scotland County 91%
- Pender County 89%
- Robeson County 89%