On good ole CA 89 a few miles north of Truckee. Drove by here many times, finally staying. Boring but handy! There are two campgrounds here about a mile apart, Lower Little Truckee and Upper Little Truckee. Theis not difference between them.
On the lake side of 89, a little harbor and campground next to the Native American-owned resort next door. The marina is closed because of the lake level. The highway to the south curves around the campground, so you are closer to the noisy trucks and fleets of motorcycles than you would at first think - not a good thing.
The springs at Grover gurgle out of the hillside into a beautiful U-shaped alpine meadow. So it should be a groovy, enchanted place, but sadly it is managed by the State Parks system, who do their darnedest to make it prosaic and institutional. The pools are a couple of rectangular concrete tubs - a big one with lukewarm water, and a shallow (3 feet) one, maybe 40x20 which they keep at a pleasantly toasty 104°. You can look over the fence on the uphill side and see the water burble out of the ground and down a sluice to you. There are showers and cubbyholes to store your stuff. There is a campground, which I have never used since it's CA State Parks expensive and there is boondocking three miles down the road.
California state park campgrounds are too expensive. If you're paying for beachfront that's one thing, but parking my van on a level spot in the woods with a bathroom for $35 does not work for me. The fine young man at the entrance kiosk told me that a couple of miles back on National Forest land, the signs saying "Camping 14 days max" also signify "OK to camp here tonight". So that's what I did.