Filter by Collections

• 9 Ecology and Natural Resources
• 9 WI Geological and Natural History

Filter by Formats

• 9 Still image

Filter by Topics

• 4 Sandstone
• 2 Conglomerates
• 2 Fossils
• 2 Geologists
• 2 Men
• 2 People
• 1 Banding
• 1 Franconia sandstone
• 1 Iron
• 1 Lodi shale
• 1 Niagara escarpment
• 1 Quartzite

Filter by Authors

• 7 Hotchkiss, William Otis, 1878-1954
• 1 Thwaites, F. T. (Fredrik Turville), 1883-1961

Filter by Languages

Filter by Places

• 3 Minnesota
• 3 Monroe County (Wis.)
• 2 WI04T16NR02WS28
• 1 Fond du Lac County (Wis.)
• 1 Michigan
• 1 Richland County (Wis.)
• 1 Taylors Falls (Minn.)
• 1 Upper Peninsula (Mich.)
• 1 WI04T12NR02WS23
• 1 WI04T16NR18ES32
• 1 WI04T17NR02WS28