1964 Map of O'Leary Lake

About this map

The George Washington State Forest dominates this section of Itasca County, defined by a dense network of glacial lakes and river systems as they appeared in the mid-1960s. Central to the landscape is the large expanse of Buck Lake, which is fed and drained by a complex of smaller water bodies including Little Buck Lake and O'Leary Lake. The Prairie River meanders through the northern section, joined by tributaries such as Day Brook, while the East River and South Fork Lake define the southern drainage patterns. This survey is notable for its detailed bathymetric depth curves, provided by the State of Minnesota Department of Conservation, which reveal the underwater topography of these lakes. Human activity is sparse, marked primarily by the Forest Boundary and a solitary Gravel Pit, reflecting a landscape managed for conservation and natural resources rather than settlement.