Ended up staying here due to another campground not working out, arrived in complete darkness and managed to snag one of two remaining sites. This place definitely fills up in the summer, however they do accept reservations. There are pit toilets and drinking water available - it’s a pretty standard USFS campground. I wish I would have had more time to spend exploring the area, it was really stunning!
It was late October when I stayed here, so there were plenty of sites to choose from even though only a few loops were open. This campground is managed by NPS and open year-round, but do note that if you visit in the summer, all of the sites are reservable and fill up nearly every night. During the winter there are 64 first-come, first-served sites. Plan accordingly! Overall it was clean, quiet and affordable. The official park website is always the best place to check for the most up to date information on campground fees, closures, etc. Compared to campgrounds outside the park, it’s a no-brainer - cheaper and you’re closer to all the good stuff!