https://outdoors.com/camping-big-hollow-4th-pumping-plant-iowa/
Camping Big Hollow and 4th Pumping Plant in Iowa - Outdoors with Bear Grylls
May 7, 2014 - I’m talking with Chris Leed today. He’s the executive director for Big Hollow and 4th Pumping Plant recreation area down in Iowa
big hollowiowa outdoorsbear gryllscampingpumping