2011 Map of Northeast Great Falls

About this map

The Missouri River carves a dramatic industrial and natural path through this section of Montana, defined by a series of significant hydroelectric and hydrological features. The river's descent is marked by Rainbow Dam, Cochrane Dam, and Morony Dam, which harnessed the same currents that create the nearby Rainbow Falls and Crooked Falls. Along the southern banks, the urban expansion of Great Falls meets the sprawling grounds of Malmstrom Air Force Base. To the north, the landscape transitions into the open terrain of Black Horse Lake Flat and the ephemeral Black Horse Lake. This 2011 survey captures the intersection of heavy infrastructure and geologic landmarks like Giant Springs, illustrating how the Missouri's water power has been meticulously managed to support the region's energy and municipal needs.