Jirsa, Mark A.2011-09-282011-09-282011https://hdl.handle.net/11299/115943mapscale 1:100,000enbedrockgeologynorthernMinnesotaCrane LakeBrule NarrowsM-192 Bedrock Geology of the Crane Lake and Brule Narrows 30' X 60' Quadrangles, Northern MinnesotaMap