Most of my state, Kansas, is private land. We have several reservoirs that are publicly accessible, but it's not the same.
We have two national grasslands that are gorgeous, but you have to appreciate subtle beauty.
No mountains, sigh.... We have the Flint Hills, which if you are ever in KS in late spring or fall, visit them. They are absolutely gorgeous.
Are you near, or have ever heard of Pratt or Lyons Kansas?
Wife from Pratt, Mother from Lyons. Wife's home place on a yellow brick road, with giant cottonwoods.