Glaciers and Glaciation in Glacier National Park

"Glaciers and Glaciation in Glacier National Park" by James L. Dyson is a scientific work revised around the 1960s that examines the glaciers of Glacier National Park, showcasing their creation, movement, and historical role in shaping the landscape. The book meticulously documents the specific locations and sizes of various glaciers, most notably Grinnell and Sperry, and analyzes the reasons behind their shrinkage. It illustrates how glacial activity has sculpted the park’s terrain, forming well-known landmarks like U-shaped valleys and cirque lakes. Dyson also connects this glacial history to past climate changes, particularly those of the Pleistocene Epoch, emphasizing the deep impact of glacial processes on the park's ecosystem and water systems.