High Quality Content by WIKIPEDIA articles! Franklin Glacier Volcano is a deeply eroded and huge 20 km (12 mi) long and 6 km (4 mi) wide caldera complex in southwestern British Columbia, Canada, located east-southeast of the Silverthrone Caldera in the Hoodoo Creek and Franklin Glacier area on the northwest flank of the Waddington Massif of the Pacific Ranges of the Coast Mountains. Franklin Glacier Volcano consists of a series of dikes and high-level magma intrusions.