Journey Home, the Trench, Fraser River, West of the Straight Creek-Fraser River Fault (washingtonlandscape.blockspot.com) I previously noted the Rocky Mountain Trench while returning home from a previous trip this past year (rocky-mountain-trench-rivers). With fog in the Trench and the valleys and snow on covering the high ground above tree line the view was enhanced as I flew over the Trench.
The Columbia begins its 1,243-mile (2,000 km) journey in the southern Rocky Mountain Trench in British Columbia (BC).