Keystone City playground and park.

If you’re passing through Keystone and need a break, this little city park pulls its weight way more than you’d expect from a town this size. The shaded picnic tables make it a solid lunch stop, especially after hiking or before you tackle Mount Rushmore traffic. Restrooms are right there, which — trust me — matters when you’ve got kids in tow. It’s quiet, it’s easy, and nobody’s fighting you for a table.