Tag: Tunnel City

Upper Cambrian Franconia Formation, La Crosse, WI

by Michael Smith, posted in Sedimentary Geology

franconia_lacrosse

franconia_lacrosse_closeup

reduced file size version (more functional for some computers): franconia_lacrosse_reduced

Cross-bedded glauconitic sandstone of the Franconia Formation (Tunnel City Group in local lore) exposed on Grandad Bluff, La Crosse, WI.