We went about an hour south of Flag in Happy Jack near Stoneman Lake and camped for 2 nights after a heavy snow storm. Every time we go in the winter we feel like we’re the only ones on the planet since everyone’s afraid of the cold. The other cool thing is you can just stick whatever food you brought (frozen or refrigerated) in the snow, drinks too, and everything is good to go. My friend and I both brought our dogs and played a lot of board games. Incredible experience.