Even though Dru Barner is mainly a campground used by equestrians, the lack of a reservation system will reduce its use by that group. From a horse camper,
"No reservation system? We can't travel a 100 miles with horses and a trailer just to find there is no place for us to park or camp. Because we have horses, we can't just go down the road a few miles to another campground. We have to use the few campgrounds that are set up for horse use. Because of the difficulty of finding other horse camps, we only use camps where we have confirmed reservations."
In case it's full, the closest camps from Dru Barner where horses are welcome are:
Loon Lake Campground - 1 hour drive
Wrights Lake Campground - 1 hour 30 minute drive
Caples Creek Campground - 1 hour 35 minute drive
Robie Equestrian Camp - 2 hours 15 minute drive
From the Eldorado National Forest website about Dru Barner Campground website:
The campground is ideal for equestrian use, with four water troughs, several pull through spaces, and access to trails. The park provides day-use facilities for staging non-motorized trails recreation.
Location: 7.5 miles east of Georgetown on Wentworth Springs Road (Forest Road 1), then 1 mile north east on Forest Road 13N16 and 0.5 miles northwest on Forest Road 13N58.