[4] The site of the Post Falls Dam was previously home to a 20-foot wooden diversion dam built by pioneer settler and namesake of Post Falls, Frederick Post, who purchased the land from Chief Andrew Seltice of the Coeur d'Alene Tribe for $500 in 1871.

[5] Post built his original dam to power a sawmill on the north channel of the river.

The park provides interpretive information on the history of the site and views of the north channel dam and spillways.

[6] Of the three dams at the site, the middle channel with the powerhouse is the only one that generates electricity.

The south channel dam measures 78 feet long with 13 foot high gates used to control spring water flows.