Still a favorite
Lost Lake Resort & Campground is somewhere we go at least once each summer. It has that nostalgic summer-camp vibe. A little more spendy than your typical Oregon campsite, but serene and private. The sites are large and more private than most I have encountered. Lush forest and tall trees are everywhere. At a high elevation, it stays cold through early summer, but that can be a good thing later in summer.
The store has coffee, wood, anything you forgot, sweets, and a rental shop. There is a covered porch at the shop in case it rains. The rental shop has boats, kayaks, canoes, and paddle boats. It's a bit of work to get far enough out on the lake to be rewarded with a Mt. Hood view, but so worth it once you get there. Frigid cold clear water stocked with trout.
It has pit toilets that sometimes give off a scent if your spot is just a bit to close.
F-loop is particularly private, with some drive-up and some walk-in sites. These are the spots closest to the lake but furthest from the store.