Montana county well data

Yellowstone Nat Park County well depths

We analyzed 2 well records with recorded depths in Yellowstone Nat Park County from the Montana Ground Water Information Center. The median well is 33.5 feet deep, and most fall between 25.3 and 41.8 feet.

12
Well records analyzed
2
With recorded depth
33.5 ft
Median depth
25.3–41.8 ft
Typical range (25th–75th)
20.3–46.7 ft
10th–90th percentile
17 ft
Shallowest recorded
50 ft
Deepest recorded
65 GPM
Median reported yield

What these numbers mean if you are buying here

A county median is a useful orientation, not a prediction for a specific property. Well depth in Montana is driven by local geology and topographic position, and both change over short distances — particularly at the edges of the intermontane basins, where unconsolidated basin fill gives way to bedrock. Two parcels a mile apart in Yellowstone Nat Park County can require very different wells.

The spread here shows that directly. While the median is 33.5 feet, recorded depths run from 17 to 50 feet. That range is why our property reports select comparable wells around the specific parcel and weight them by geology rather than quoting a county average.

The median reported yield in Yellowstone Nat Park County is 65 GPM. Bear in mind these are short drilling-test measurements taken at completion, not sustained-capacity tests, so treat them as an indication of what drillers encountered rather than a guarantee of long-term supply.

Static water level — the depth at which water stands before pumping — has a median of 13.3 feet across 1 records in the county. This affects pump setting and operating cost.

Check a specific property

County statistics are context. A property report analyzes the wells around one parcel.

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Source: Montana Bureau of Mines and Geology, Ground Water Information Center (GWIC) and Montana Department of Natural Resources and Conservation (DNRC), Water Rights Bureau. Statistics computed September 26, 2026. Abandoned, plugged, and destroyed wells are excluded, as are depths outside a plausible range. See methodology.