Mammoth Campground is very clean and well kept. The sites are tight but we spent of our time off exploring and never found this to be an issue. Toilets and running water are available but no showers. Firewood is also available for sale. Just a short ways up the mountain is the lodge and village, which provides about anything you could need. We drove into Gardner our first night to pick up a few groceries and some fresh ground bison for dinner. The location is great for exploring the north end. We highly suggest hiking to Osrey Falls if you're up for an adventure that's a bit less crowded. The hot springs are very neat and well worth checking out.