Helicopter electromagnetic and magnetic survey maps and data, East Poplar Oil Field area, August 2004, Fort Peck Indian Reservation, northeastern Montana
by Bruce D. Smith ... [and others] ; U.S. Department of the Interior, U.S. Geological Survey ; in cooperation with the Office of Environmental Protection of the Fort Peck Tribes
Other Title
Title of second report: Resolve survey for U.S. Geological Survey, East Poplar oil fields, Montana