Our favorite campground near Portland (normally a 45-minute drive). Not a ton of camping spots (20-30 drive in, a dozen or so walk-in), but I've had good luck booking mid-week spots the day before in the summer. There's also a couple of cabins with great lake views. Has pretty much everything you'd need: a small lake (caldera), a swimming beach, a camp-store with hot dogs, bait, etc., and a dock for fishing. Plus Battleground the town is maybe a 10 minute drive if you want to hit a restaurant or grocery store.