MGS Miscellaneous Map Series M-154 Bedrock Geology of the Hudson Quadrangle, Washington County, Minnesota by John H. Mossler 2005 GIS layers and digital files projection: All Arc/Info coverages are double precision and are in UTM zone 15 projection, NAD83. coverages --------- bgpghuds - polygon coverage of bedrock geology features. bthud - line coverage of equal elevation of bedrock surface. cjstr_hud -line coverage of structure top of the Jordan fm. export(e00) -folder containing arc export files of the covers. erodhud - polygon coverage containg areas where Jordan fm eroded lakeshuds - polygon coverage derived from MnDOT base layer "lakes" Mndothuds - borehole locations from MnDot records Mndotpts.dbf - data to accompany mndotstil ochuds - polygon coverage of outcrop locations. papghuds - polygon coverage of the project area (quad); from drgindex(MGS) from MDH constructed grid (NAD27 lat- lons projected to NAD83). strhud - line cover of faults wwpthuds- point coverage pulled from located CWI data. base layers ----------- hudsonbw.tif - black and white, modified version of drg for quad as tiff hudsonbw.tfw - world (registration) file for tiff amls and misc.files ------------------- bgnet.aml - main aml to draw bedrock geologic map bgpg.lut - lookup table for coloring geologic units oc.aml -aml to draw outcrops Compiled map ------------- m154.pdf - published map as pdf image. Metadata -------- m154meta.doc - Microsoft word metadata summary. questions concerning the digital data may be directed to Tim Wahl ( tewahl@umn.edu ) or Rich Lively ( lively@umn.edu ). questions concerning the geologic information presented in the map should be directed to the author, John Mossler (mossl001@umn.edu). All may be reached by phone at the MGS at 612-627-4780. Tim Wahl 2005/04/22.