MBMG-137973

Montana Bureau of Mines and Geology

Located in Dawson County, Montana, this groundwater monitoring location is associated with a water well in the Lower Tertiary aquifers.

Well Construction

Depth Description
-1.8-105.0 ft 4.0 in diameter pvc casing
80.0-100.0 ft 4.0 in diameter slots screen
Depth Lithology Description
0.0-4.0 ft unknown GRAVEL SILTY
4.0-23.0 ft unknown SILT CLAYEY LIGHT BROWN
23.0-54.0 ft unknown COAL SOFT DRY
54.0-59.0 ft unknown SILT SANDY GRAY
59.0-110.0 ft unknown SILT AND CLAY SANDY
110.0-116.0 ft unknown SILTSTONE HARD

Operated in cooperation with: