Sounds like you have done some research on Auburn State Rec.
Be sure to know their rules, different than other places
Wont need your GPAA book, ASR is not affiliated with GPAA.
There are GPAA claims in the area, check them out
Good little mining shop in Auburn, hope it;s still there
There are spots off of Yankee Jim Rd, Shirt tail creek, dont know status of claims in the area
Iowa Hill Rd, Penny weight trail might be worth looking at, your above ASR area
Other side of Hwy 80 at Colfax, the Bear River is gold bearing
Nice little camp ground at the bridge on Iowa Hill rd, comping on the Bear outside Colfax
The Bear is COLD, not that any are warm this time of year
In my opinion, leave the detector home, too MUCH trash
No physical perimeters, GPS, be lucky to find a claim sign
Claims can be as little as 20ac, no they arent always equal sides from the center
Get the forrest circus topo maps of the area and lay them out
So much area, so little time, good luck
So Much River So Little Time...Get Out There