Tectonic events at the intersection between the Hope Fault and the Purcell Trench, northern Idaho

Abstract

The intersection between the Purcell Trench, a topographic depression extending from Coeur d'Alene Lake northward for about 280 miles, and the Hope fault, a major west-northwest-trending right-lateral fault at least 100 miles long, is in the Idaho panhandle. The zone of intercept in the Purcell Trench is largely hidden by glacial debris.