Entrance located between mile marker 3 & 4. The road is, I think, actually a really nice dirt road for about the first 1-2 miles in. After that the road turns into bigger rocks, I was definitely not taking my 2wd van up. Beautiful spot, the weekend was busy but it wasn't a problem for me and it was still quiet at night! Highly recommend this spot! I stayed for 6 days and at 3 different campsites.