Lower Colorado River Valley

River Tahquamenon Falls, Lower - on the Tahquamenon River Tahquamenon Falls, Upper – 15 m (50 ft) drop, 61 m (200 ft) wide on the Tahquamenon River Wagner

Elsasser، Albert B. (1979). "Explorations of Hernando Alarcón in the Lower Colorado River Region, 1540". Journal of California and Great Basin Anthropology

بتاريخ 2013-01-07. Harmata, A. R. 1984. Bald Eagles of the San Luis valley, Colorado: their winter ecology and spring migration. Phd Thesis. Montana State

(2012-04). "A 28,000year history of vegetation and climate from Lower Red Rock Lake, Centennial Valley, Southwestern Montana, USA". Palaeogeography, Palaeoclimatology