When I was in Boy Scouts in Upstate New York, there was one, and only one, song that I could remember all the words to. It involved Nebraska, and more specifically hog calling time in that esteemed state. I didn't mention that fact to anyone on this trip.
We stayed at Chadron State Park, which was both a good base camp to see things in that part of the region, and also a really nice place to camp

The blooming cottonwood did give Shelly a few problems with allergies, and, when we came back a week later, fooled me at first into thinking I had allergies rather than covid. But I get ahead of myself. The campsite has quarter operated showers. I'd heard there was a laundry facility there, but that isn't true. Not sure where I heard that it did; it might be from the Nebraska state parks web site.
I finally remembered to get a picture of our homemade grill (inside the fire ring). Works great. Maybe someday I'll remember to take a picture with food on it. This time, we made a last minute switch and decided to bake our pork in the Dutch oven.
BTW, Shelly recently switched to a low sodium diet, which made menu choices for this trip a challenge. Worked out well, especially for me, as Shelly had to do most of the cooking. The other thing about Boy Scouts is their cook book (in my day) largly involved salt in various forms, sometimes with a meat, vegetable, or potato thrown in for color or texture.
Our first full day in Nebraska, we went to see the Hudson-Meng Bison Bonebed, which is run by the US Forest Service

The ranger had a good talk, and we got to see the bonebed, which was excavated over a period of years. (I think they continue whenever they have funding.) In this case, the reason the bison gathered is a bit of a mystery. Some proposed it was a kill site, where ancient indians drove herds off of a cliff, but the geologists say there never was a cliff in the area. There is, however, clear evidence that men were involved in working the bones.
We then went to Toadstool Geologic Park (also run by the Forest Service) for lunch, and a short hike through the toadstool shaped rocks in the heat of the day.

There is a campsite there, with no facilities beyond man made shade over the picnic tables and the outhouse. News to me that prickly pear grow that far north, but there you go. Oh, there is also an old "soddy" you can look at. The mud really does keep them cool. This one had it's own bug control system!

We rounded the day off with a visit to the (air-conditioned) Museum of The Fur Trade in Chadron. (Exactly how far North does a culture have to be before it's politically correct to wear fur?) A very interesting museum.
We wanted to see the Eleanor Barbour Cook Museum of Geology in Chadron, which is often listed as one of the places to see on the Fossil Freeway, but it appears to be closed permenantly. Not sure why. We'll make a point of looking for it reopening the next time we plan a trip though the area.
BTW, while the days were warm in Chadron, the nights were cool, to the point we got out our wool blanket. (We didn't run the heater, though we could have as we had shore power.) Even had a thunderstorm at least one night, and the rain calmed down the cottonwood pollen.
Tom