Fresh Water East Camping

San Gabriel River, East Fork, Heaton Flat Camping and Fishing?
I am going to camp and fish at Heaton Flat, San Gabriel East Fork. Can any give me advise where to fish and what to expect from both fishing and camping experience. I have some experience at salt water fishing, but fresh water fishing is new to me. Advise? Plus, i am taking my first fly fishing rod with me. Advise for fly fishing at the San Gabriel River Eask Fork.
Also, what are the rules and limits for taking different species of fish. Thank you.
I’ve never fished the river itself but I have had good luck fishing a stream that feeds into it about 8 or 9 miles upstream. You are going to have alot of competion with gold miners in the river. It is a popular recreational mining area. Bring a pan. I’ve had some luck panning the gravels. I even found one piece I could pick up and hold.
Camping On the Dampier Peninsula