<p>There’s a WalMart supercenter in Bozeman that we stopped in and bought supplies for several days. We ate cereal for breakfast and sandwiches/cold cuts for lunch, but dinner in the restaurants. Also picked up a rolling cooler there that still comes in handy today. </p>
<p>Plenty of free ice available in Yellowstone.</p>
<p>Don’t forget the altitude in the northern part is quite high (8000’), so some people in your group may have some issues. Keep hydrated. We also hiked Mt Washburn, but it sounds like you won’t have time for that.</p>