My husband and I will be taking a short trip to Yellowstone National Park in July. I'd love your advice/suggestions with our route through the park based on where we will be staying. We are driving up from the Grand Tetons early morning of July 14th - spending the first night in Canyon Campground, then the next two nights in Madison Campground. Our plan on the 14th was to drive north and go east toward Mud Volcano and Upper/Lower Canyons before setting camp for the first night. Since we are spending the next two nights in Madison Campground, what are your suggestions for the best routes through the park? We are planning leaving after dinner on the 17th, so we have 4 days/3 nights in the park. I know this is far too short, but hopefully we can see most of the highlights :) Also, what would you say the average low temp is overnight? We are camping in a tent and need to make sure we don't freeze! All of your help is greatly appreciated!