Geologic formation in southwestern British Columbia, Canada and Washington, United States
Slesse Mountain in British Columbia, Canada, consists of Chilliwack batholith rocks
The Chilliwack Batholith is a large batholith that forms much of the North Cascades in southwestern British Columbia , Canada and the U.S. state of Washington .
The geological structure is named after the Chilliwack River Valley, where it outcrops in many places. It does not outcrop anywhere near the City of Chilliwack .
The Chilliwack Batholith is part of the Pemberton Volcanic Belt and is the largest mass of exposed intrusive rock in the Cascade Volcanic Arc .
The age of the Chilliwack batholith ranges from 26 to 29 million years old.[ 1]
References
49°01′N 121°35′W / 49.017°N 121.583°W / 49.017; -121.583