North of Vancouver near Squamish and north of Stawamus Chief, the Mamquam FSR route is open to dirt bike riding.
The Mamquam FSR dirt biking trailhead is located north of Stawamus Chief on the east side of the road near the overflow parking lot. The start of Mamquam FSR should be signed. There are many side routes off the FSR to explore.
Overall, Mamquam FSR is the 7th most popular dirt bike trail of all 36 dirt biking rides in British Columbia.