File:Anorthosite & nelsonite gravel pile (Sybille Canyon, Laramie Range, Wyoming, USA).jpg - Wikimedia Commons

File:Arrondis maths.svg - Wikimedia Commons

Gravel Valentine: A Geologist's Guide to Wyoming

Sybille Canyon - WY Highway 34 - Geology of Wyoming

Category:Heraldic examples (gray SVG) - Wikimedia Commons

Category:Nelsonite - Wikimedia Commons

File:Titanium mine (Laramie Anorthosite Complex, Mesoproterozoic, 1.43 Ga; Sybille Pit, Laramie Range, Wyoming, USA) 5.jpg - Wikimedia Commons

Sybille Canyon - WY Highway 34 - Geology of Wyoming

Geolex — Laramie publications

Sybille Canyon - WY Highway 34 - Geology of Wyoming

Sybille Canyon - WY Highway 34 - Geology of Wyoming

Sybille Canyon - WY Highway 34 - Geology of Wyoming

File:Geronimo's Grave (5697149105).jpg - Wikimedia Commons

Soaring With Stone Eagles - Archaeology Magazine

Waste rock pile (Woodville Canyon, northeast of Butte, Mon…