There are a number of access points once you get past the Squamish Band lands. Continue along the Squamish Valley Road to about mile 21 (there is a log bridge on your left side, and the end of the pavement is at about mile 20) there are plenty of fishing spots from that point up to about mile 26. Many, many pools, runs and tailouts will keep you busy. There are more spots further up, but a bit trickier to fish. Good luck.