Please purchase firewood locally to prevent the import of forest pests from other regions. Food, Firewood and Supplies. Drinks, snacks, convenience foods, camping supplies and firewood may be available at a Campground Store located between Loop 1 and 2. These supplies are also available at the Oasis Store, located just outside the park entrance. Regional grocery stores have a full selection of groceries and fresh foods. Local restaurants are also available. Regionally harvested firewood may be available at the Campground Store in Piñon Flats Campground during the busy warmer months; and at the Oasis Store just outside the main park entrance. Collecting firewood is illegal in the national park.