We went in mid-June. The campground was really quiet. As everyone else said, the bathrooms were really clean. The Camp attendant was super help and always around to answer questions. The campground has many bathrooms and water stations.
The lake level was pretty high and the river was moving pretty fast. So it was harder to fish on foot. Luckily we had a kayak and paddleboard. Caught some really nice fish. Kokanee, Rainbows and Bulls.
We had a deer visit our campsite one of the mornings!
We originally booked site 2 but it wouldn't have fit our (large) tent very well. so we took one of the other available sites, site 10.
The weather was amazing, the campground was clean, the lake was beautiful.
We drove by Redfish on the way out. While the Sawtooths towering over the lake are beautiful, I much prefer the quiet solitude at Alturas lake.