Montana Well Data field records · 2026 survey

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Dept OF Transportation

Recorded as the driller on 527 water wells across 30 Montana counties in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC), most in Mineral County. Well-log records span 1956–2017.

527wells on record
since 2022
30counties served
41 ftmedian depth

Counties served

Wells drilled by Dept OF Transportation, by county, across the full record.

CountyWells drilled
Mineral County 148
Lewis and Clark County 94
Stillwater County 34
Park County 29
Lincoln County 28
Madison County 24
Carbon County 20
Gallatin County 20
Sweet Grass County 18
Musselshell County 15
Big Horn County 14
Wibaux County 11
Show all 30 counties
Carter County 10
Broadwater County 7
Beaverhead County 6
Missoula County 6
Phillips County 6
Rosebud County 6
Judith Basin County 5
Daniels County 4
Glacier County 4
Lake County 4
Yellowstone County 4
Sanders County 3
Fergus County 2
Cascade County 1
Chouteau County 1
Jefferson County 1
Toole County 1
Wheatland County 1

Well characteristics

Across the wells Dept OF Transportation has drilled, the median depth is 41 ft (middle half 19 ft–60 ft), median tested yield 25 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 Dept OF Transportation, straight from the public MBMG record:

"Records span 1956–2017" 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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