USGS home Scientific Investigations Map 2940 

JTrc-1. Cultus Formation of Brown and others (1987) (JTrc) of the Chilliwack River terrane. Typical outcrop of finely laminated tuffaceous argillite near Canadian border, north of Bald Lake [MBnw].
Previous Photo        Next Photo   

Photo Indices: Captions (Additional photos home) | Map | Young rocks and deposits | Older rocks west | Older rocks east