Makoshika State Park is beautiful camping and is about as good as it gets for primitive camping. There's quite a few hiking trials, a small museum and a gift shop at the Visitors Center. The photography options are just about endless. Also, don't let anyone fool you into believing the Diane Gabriel Trail is "easy." I mean, it's not bad … until you have to scale the hill. Beautiful views though.
If you're in a tent or a pop-up, there are some very cool primitive sites up the switchbacks that provide spectacular views of the park. If you have a camper or RV, camping in the coulee is wonderful.
The only negative is the primitive camping angle when there exists the ability for each site to have both water and electric. They added water spigots on each side of the Cains Coulee Campground earlier this year, but if they were running lines, why not run to every site? I understand if it's a water pressure issue, but still. Electric as well. The Camp Hosts now have water, electric and sewer. It'd make sense to bring that to all the sites. Not only would it make camping at Makoshika a 5-star experience, it'd allow everyone to enjoy the peacefulness of the Cains Coulee valley without a bunch of generators running.
Our experience was awesome and we will be returning next year.