Montana Well Data field records · 2026 survey

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Usgs

Recorded as the driller on 102 water wells across 15 Montana counties in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC), most in Roosevelt County. Well-log records span 1950–1994.

102wells on record
since 2022
15counties served
40 ftmedian depth

Counties served

Wells drilled by Usgs, by county, across the full record.

CountyWells drilled
Roosevelt County 34
Lake County 14
Flathead County 12
Dawson County 10
Yellowstone County 9
Rosebud County 5
Big Horn County 4
Gallatin County 4
Lewis and Clark County 3
Toole County 2
Judith Basin County 1
Missoula County 1
Show all 15 counties
Prairie County 1
Sanders County 1
Wheatland County 1

Well characteristics

Across the wells Usgs has drilled, the median depth is 40 ft (middle half 18 ft–56 ft), median tested yield 30 gpm, and median static water level 9 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Usgs, straight from the public MBMG record:

"Records span 1950–1994" refers to the earliest and latest well logs attributed to this company in the MBMG database — the state digitized older paper logs, so the first date is the oldest record on file, not necessarily the company's founding year.

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