I'm not sure how Lander makes this work, but they do(and I wish more cities could do the same). We pulled in after dark needing a place to sleep and this place is more than we could have expected. Level ground and lots of room, so it was easy to find a spot for our trailer that required no backing up. Bathrooms nearby. Dark and quiet area(doesn't feel like a parking lot). There is a large gravel area with a couple large trees for RVs, trailers, vans, and such. There's also a large grass and trees area for tents adjacent. The whole area is next to a large riverbed with lots of vegetation along the banks. Everything seems clean and well-kept. Lander seems like a really nice town. It's relatively lush, unlike the surrounding country, and feels like an oasis. The signs say the city allows three day's camping and I would be happy to do so if I were ever in the area for an event(apparently there's an apple festival next week!). There's no fee, but there is a sign suggesting donations to the city park service which certainly seems reasonable if you can swing it.
The camping area attached to the city park a few blocks off the main road is gem. Cascading river next to the camper area provides lots of white noise. The tent area is lush & green with a few trees, totally unexpected. But to achieve that there were sprinklers going off at 6pm when I arrived. They quit about 8. Now the question is will they go off in the morning? Yes they went off at 6am. So be prepaid for rain if you set up a tent.
In the city of Lander you can camp for up to three days for free at the city park. It’s a pretty good deal as the the tent area is set back behind the stadium in a nice grassy area with access to flush toilets in the parking area. It was pretty busy while I was there, with quite a few families and cyclists taking advantage of the free camping. The Popo Agie River runs next to the park which makes for a nice sound machine to fall asleep to. If you need a shower head over to the Recreation Center and pay $5 for use of the facilities. In town are some great restaurants (Cowfish is my favorite, with a microbrewery attached), and outside of town is some great hiking in Sinks Canyon and the Shoshone National Forest.
Great little park next to a great river. It was swollen while we were there. You can use the park facilities. Great town to stay and explore the area.