Squirrel Hollow County Park is located along the North Raccoon River southeast of Jefferson, Iowa, United States.

It was established in 1934, and it is the second oldest county park in the state of Iowa.

They are open from April 1 to November 1 and feature facilities for camping, fishing, canoeing, kayaking, hiking, picnicking, and equestrian camping and trails.

The 36 by 20.5 feet (11.0 by 6.2 m) shelter house features old mill stones in the center of the concrete floor.

The structures include two fireplaces located east of the shelter house, the stone retaining wall on the east bank of the Raccoon River, two entrance portals along the county access road, a ball diamond, and the gravel road system.