Roosevelt County

Geophysical Investigations and Monitoring of Selected Areas Associated with the Dry Prairie Rural Water System Tie-In Construction Project at Fort Union Trading Post National Historic Site, Roosevelt County, Montana, and Williams County, North Dakota

Trading Postg

The National Park Service’s Midwest Archeological Center and Fort Union Trading Post National Historic Site staffs conducted geophysical investigations and construction project monitoring at the Fort Union Trading National Historic Site in Roosevelt County, Montana, and Williams County, North Dakota. Read More …