Jirsa, Mark A.2011-09-282011-09-282011https://hdl.handle.net/11299/115934Some information on this map was previously published as part of MGS Open-File Report 10-04. This M series map supersedes the Open-File Report. Scale 1:24,000.enbedrockgeologynortheasternMinnesotaHam Lake FireGunflint TrailMap