Sinkhole risk in LaMoure County, ND: Mostly deep or small
Mostly deep or small
Some soluble rock, mostly deeply buried or in a small share of the county.
- On soluble rock
- 18%
- At or near the surface
- 0%
- Buried under cover
- 18%
The next step for one property
Sinkholes are uncommon here; watch for new depressions after heavy rain or leaking pipes.
That works out to roughly 205 of LaMoure County's 1,146 square miles on soluble rock. With about 4,051 residents (4 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 408 map points about 1.7 miles apart, so a pocket smaller than that can be missed or overstated.
Read next: why the 18% under cover still counts, and how these percentages are measured.
Counties around LaMoure County
The nearest county rated sinkhole country is Boyd County, NE, about 247 miles south. 4 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.
- Dickey County, ND 25 mi south · 0% at surface
- Barnes County, ND 39 mi northeast · under 1% at surface
- Stutsman County, ND 41 mi northwest · 0% at surface
- Ransom County, ND 42 mi east · under 1% at surface
- Logan County, ND 47 mi west · 0% at surface
- Sargent County, ND 49 mi southeast · 0% at surface
The rock underneath
The largest mapped soluble unit here is the Niobrara and Carlile Formations, Undivided (limestone), Cretaceous in age, covering about 18% of the county.
Against the rest of North Dakota
LaMoure County ranks 26 of 53 in North Dakota for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Cavalier County 2%
- Ransom County under 1%
- Dunn County under 1%
- Barnes County under 1%
- Slope County under 1%