Summerdale is a little gem right outside Yosemite. The sites are well spaced and private, unlike what you will find in the park. My family and I have visited Summerdale about 10 times so far, and it is one of our faves. 

Fishing: Can be GREAT! But at times, has been really bad. We've often caught our limit each day (trout) and snagged some crawfish to boot. But, we've also had a couple of experiences when we didn't get a single bite.

The Creek is lovely - good for swimming wading, and has several slow shallow spots where you can put your chair in and enjoy the afternoon. I have seen beavers in the creek south of the campground.

Facilities: Pit toilets, trash service and piped water. All good quality and well maintained. The campground is CLEAN. I've never seen a cleaner campground.

HWY 41 noise: Yes, its there fairly consistently from about 8am-6pm. Passenger cars are not terribly noticeable, but larger vehicles and noisy vehicles are more so. Nights are punctuated by an occasional Harley accelerating up the hill, and an occasional hot rod blowing by. But most times, the creek makes enough noise that it drowns out all but the loudest highway noise.