The campground is open but you'll need to make reservations in advance. For day use they are only letting in enough people to fill up the picnic tables then they usually close it off. Hope this helps, let me know if you have any other questions.
You need to make reservations 6 months in advance and right know you are only allowed 1 camping unit per site and only 8 people per site. Once the restrictions are removed you can still only have 8 people per site and 2 tents or 1 hard unit 1 tent. For additional fees you can do 3 tents or 2 camping units. For a group that big you will need to reserve 6 months in advance. We usually reserved 6 months from the date of our reunion and get 5 to 6 sites. Just a FYI
It looks like most sites are limited to 8 people. Here is a link for reservations and site details: https://www.reserveamerica.com/explore/horsetooth-reservoir/LARC/710105/campsites?nextAvailableDate=false
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