2020 Map of Grand Coulee Dam

About this map

The massive engineering of the Grand Coulee Dam anchors this landscape, where the Columbia River is impounded to form Franklin D Roosevelt Lake. The surrounding area is part of the Lake Roosevelt National Recreation Area, featuring a complex shoreline of inlets like Crescent Bay, Eden Harbor, and Gibbs Bay. On the high ground above the dam, the town of Grand Coulee and the settlement of Coulee Dam serve as the primary population centers, alongside the historic residential layout of Mason City. The map reveals the dramatic transition from the plateau of Washington Flats down to the carved coulees and draws such as Seaton Canyon and Klobuschar Draw. To the northwest, Crown Point Vista provides a vantage over the river's bend, while the north-south canyon geography is further defined by Hells Canyon and the high point of Sand Hill.