Upper Cambrian, undivided (MNCu;0)

Upper Cambrian, undivided - Jordan Sandstone; dolomite, glauconite, and silty glauconite rocks of the St. Lawerence and Franconia Formation; Ironton and Galesville Sandstones; sandy and shaly rocks of the Eau Claire Formation; and the Mt. Simon Sandstone.

State	Minnesota
Name	Upper Cambrian, undivided
Geologic age	Late Cambrian
Original map label	Cu
Primary rock type	dolostone (dolomite)
Secondary rock type	sandstone
Other rock types	shale
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Shale Sedimentary > Clastic > Sandstone Sedimentary > Carbonate > Dolostone
Map references	Morey, G.B., and Meints, Joyce, 2000, Geologic map of Minnesota - Bedrock Geology: Minnesota Geological Survey, State Map Series, S-20, 3rd edition, scale 1:1,000,000. available online at: http://www.geo.umn.edu/mgs/currentpubs.htm [http://www.geo.umn.edu/mgs/currentpubs.htm]
Unit references	Morey, G.B., and Meints, Joyce, 2000, Geologic map of Minnesota - Bedrock Geology: Minnesota Geological Survey, State Map Series, S-20, 3rd edition, scale 1:1,000,000. available online at: http://www.geo.umn.edu/mgs/currentpubs.htm [http://www.geo.umn.edu/mgs/currentpubs.htm]
Geographic coverage	Anoka - Blue Earth - Brown - Carver - Chisago - Dakota - Faribault - Fillmore - Goodhue - Hennepin - Houston - Isanti - Kanabec - Le Sueur - McLeod - Martin - Mille Lacs - Nicollet - Olmsted - Pine - Ramsey - Rice - Scott - Sherburne - Sibley - Wabasha - Washington - Watonwan - Winona - Wright