THE ROCKSBURY LAND BRIEF
Land in the
Beach Ridges and Sand Deltas setting.
Rocksbury township has 33.5 square miles of land in Pennington County. Its Census reference point is in Beach Ridges and Sand Deltas, within Lake Agassiz Plain.
The former bed of glacial Lake Agassiz forms an exceptionally flat plain in the Red River valley. Thick lake sediments overlie older glacial deposits across this historic prairie landscape.
Regional context: Lake Agassiz Plain ↗ · Classification at the Census reference point
Rocksbury and Pennington County
Rocksbury is associated with Pennington County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Rocksbury by land and water
The Census records 0.52 square miles of water within Rocksbury, or 1.5% of its total area. It is 1.3 percentage points higher than the 0.3% recorded for Pennington County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Rocksbury township has 5.6 times the land area of nearby Thief River Falls city (6 square miles). These areas describe boundaries, not comparable property prices.

