Types
Features
Monuments
Famous Monuments
Sculpture
Famous Sculptures
Pictographs
Petroglyphs
Figurines
Fossils
Algoma-type , Lake Superior-type, Superior-type and Taconite
Is one of the oldest rock
Dunite, Wehrlite, Harzburgite, Lherzolite
Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest rock