Must have horse(s) with you in order to make a reservation and camp. This is the OAK GROUP HORSE site. Group size is limited to 50 people with 20 vehicles at site, which has pit toilets and no hook-ups. You must have a minimum of 7 horses ($2 per night per horse over 7 which is paid at the park). Maximum of 25 horses. Water for horses only, campers must bring own potable water.