Kirk, you could be right -- the lake I'm thinking of is very near the southern border, close to the California-Nevada border (Oregon borders on both). I passed through there once on the way from Ontario (at the Idaho border on I-84) to Crater Lake, but that's been more than ten years, and at the time that was a place to get through quickly, hoping the air conditioning in the car wouldn't fail, not a destination...
Bookmarks