The Bear Lake basin developed from fault subsidence that continues today, slowly deepening the lake along the eastern side. The Bear Lake graben is about 5 miles long and 4.3-8.6 miles wide. It extends across the Utah-Idaho border and involves faults on both eastern and western sides of Bear Lake....
Palacios, Patsy; Luecke, Chris; and Robinson, Justin
"Hazards within the Bear Lake basin, Utah,"
Natural Resources and Environmental Issues: Vol. 14
, Article 11.
Available at: http://digitalcommons.usu.edu/nrei/vol14/iss1/11