SCD becomes 3N17 before it reaches AFH (N34 23.505 W118 04.874). There's a parking lot across.
Sure, BPL Rd. (4N32) and 3N17 meets at N34 23.232 W118 15.111. Not sure if it's open, we saw a few locked gates along the way. If you want, let's check it out next time.