If you don't feel like going up 49 there is always Washington. It's a little town off hiway 20 about 15 miles east and 6 miles down off to the left just after the scenic Sierra Butes Overlook. Lots of camping the other side of town on Poorman's Creek, a dozen or so lakes and other locations. Just remember to take enough gas to get back to Nevada City, there isn't any in Washington. BTW the locals are great folks, they just look spooky
Also don't overlook Bear Valley a few miles further east of the Washington turnoff. Hike back into Drumm lake and several other small lakes in the Vehicle Restricted Area a few miles beyond the PG&E camp. Get a TNF map at the station in town or at White Cloud Station, it's on the way up.