Cottonwood Campground is nothing very special, in our opinions but served it’s purpose! It’s very close to Santa Elena and a great spot as a home base for exploring the west side of Big Bend. The campground is right off Ross Maxwell road and a few miles before you reach Santa Elena. The sites are in a long loop. They had just created several more sites when we were there - 29 in total I believe. Pit toilets, potable water and trash are available, as well as a bear box in every site. There was a couple serving as camp host that were very kind and happy to lend advice. Campground was quiet and calm when we were here in January. A gentleman next to us set up a big telescope at night and let everyone gaze at Jupiter and the moon and such. Was really lovely!