That FSR in Squamish I filmed the video on is just off of the #99 after you pass the big climber's parking lot at the Chief. I park in the climber's "over-flow" parking lot which is right next to the hwy on your right. The gravel road starts right there and heads east. It goes for 35kms to the top of Indian Arm. There's usually not much cage traffic and it's easy riding. Here and there you can explore some side roads (see 2nd last note at bottom for this weekend) for more adventure. It's definitely for riders of all levels as you can go at whatever speed pleases you.
Unfortunately, there's nothing on the North Shore, it's all illegal - bylaws. That being said, when I got my bike I did a run up the Eagle Lake access road in W. Van and didn't get caught but had an evil look from a lone jogger who I passed slowly.
Closest legal areas is Squamish that way and Maple Ridge (Blue Mountain) to the east. If you want more info on Blue Mountain area let me know. It's probably less distance to the end of the road than the Squamish FSR by a long shot. You get nice views to the east and depending on which branch of the road you take views of Alloutte Lake to the west. Been 4x4ing up there years ago as well.
If you want a loooong ride, you can go past Mission, before the Lougheed crosses the first set of double tracks heading east (convenience store and restaurant right there) go straight on the north side of the tracks until the road makes a sharp left and heads straight for the mountain. Don't take the sharp right, go straight, onto the gravel road. This is the access road for the Mission/Abbotsford water reservoir. If you follow the main road you come out at the golf course next to the Harrison River in the area of the Sasquatch Inn. Very long ride. All logging road. Sometimes it's gated but don't worry about that. Watch out for logging trucks, it's still an active area.
Get a trial membership at www.keyhole.com
and you can get satellite images of where you want to ride. Just hit ALT-PrintScreen. Then PASTE the clipboard image into photoshop or whatever and crop it and print. Outside of big cities the resolution isn't that great though. It wasn't good enough for me to see if the Meager Creek hotsprings bridge was still washed out which I think it is. Doh!
Other than that, if you call up the Squamish Forest District they will mail you free maps of all the logging roads in the entire area up to Pemberton. I've got a collection of them I need to dig up and dust off.