Are you ready to conquer YOUR terrain? Terrain challenges you both physically and mentally with over 20 obstacles. Choose YOUR race distance to challenge yourself: 5k and 10k distance at each location. Party at the finish line with friends, family (kids as young as 7 can run the full 5k course.), mud and views of the obstacles you conquered. You'll be proud when you finish your race with us. Make Terrain YOUR race. You'll sweat. You'll get dirty. You and your friends will have the time of your life. Old Tucson is closed to the public for this event.