Isle Royal National Park
Isle Royale National Park
Mesabi Range
gold field
gold mine
Kenai Fjords National Park
goldmine
megamine
roundhouse
silver mine
goldfield
stowce
Wind Cave National Park
Leelanau
iron mine
Lake Clark National Park
Haleakala National Park
Lake Clark National Park and Preserve
Platt National Park
Chickasaw National Recreation Area
Gagetown
quarry
Pierson
Carlsbad Caverns National Park
Cotswolds
minesite
graystone
Atlantic roundhouse
polylith
Marcellus
Guadalupe Mountains National Park
Fort Orange
Bellevue
paleoarch
mineworking
pothole
toyohaite
cliff dweller
remains
Theodore Roosevelt National Park
orehouse
leadfield
Theodore Roosevelt Memorial National Park
Independence
paleovalley
Stonewall
archeological remains
Nashville
Franklin
haematite