Just returned from a weekend getaway to Loon Lake. We (2 people, 1 pup) stayed two nights at site #25 at Loon Lake Campground. Perfect location for daytime fishing and nighttime stargazing.
Highly recommended!
Highlights: Clear skies (above the smoke from wildfires) and crystal-clear water (warm) made for the perfect escape from the valley smog and smoke. The drive from Sacramento took less than the estimated 2hrs (even on a Friday night at 7 p.m.) and we arrived just before dusk.
Campground: Easy to find and easy to navigate. campsite was clean and flat enough for one tent. the table was slightly broken but not enough to cause any problems. definitely bring something for shade. Bathrooms and water spigots were nearby and you can cut through the back of the site to the Loon Lake trailhead for a nice hike around the lake. For lake access, look for trail near site #29.
Lake: Warm, clear water with sandy/grassy beaches all around. No luck fishing but the lake was stocked with trout late July so sure it was just us.
Considerations: Don't stay at site #25 if using more than one medium tent. Bring extra ice and supplies–the nearest market was too far to justify a trip (40+ mins one way). Drive around the lake to Rubicon 4X4 trailhead. Saw so many beautiful Jeeps and off-road vehicles.