Ogden Tweto

1912

• Geology of the Minturn 15-minute quadrangle, Eagle and Summit Counties, Colorado
• Gravity and magnetic features as related to geology in the Leadville 30-minute quadrangle, Colorado
• Las Animas formation (upper Precambrian) in the subsurface of southeastern Colorado
• Mineral resources of the Gore Range-Eagles Nest primitive area and vicinity, Summit and Eagle Counties, Colorado
• Nomenclature of Precambrian rocks in Colorado
• Rock units of the Precambrian basement in Colorado