For a 10 day stay in the park I will bring 200 rolls. I have never shot that much but have had days where I have shot over 20 rolls. I shoot a lot of in camera dups. Clothing and Camping gear Temperatures can range from 10F above in the early morning to 80F in the afternoon. I use a three season tent and bring two different weight sleeping bags.
Food is kept in coolers in the camper topper on the truck.
Dishes are cleaned immediately after eating. I leave the sleeping bags and pads in the tent, anything thing more than that goes back in the truck. I do not want to go back to the vehicle to get warmer clothes however, when I leave will be when the action starts. By the time it is warm enough to shed the action will have slowed down. Lodging There are a good number of campgrounds in Yellowstone.