More than 35 walkers and bicyclers traversed the Leonard Swanson Memorial Bike Path Saturday in remembrance of the 1972 Black Hills flood, converging at Old Storybook Island for a picnic. We hope you enjoy the photos. More photos appeared in Sunday’s Rapid City Journal.

Our picnic was graced by two new Prairie Statue oak trees that Friends donated to help replace trees destroyed by Winter Storm Atlas.

Curtis Price of the U.S. Geological Survey explains the work of the agency in documenting and understanding water and floods in the Black Hills.