This is the site of the first mill built on the Rideau, the King’s Mill, built here at Cataraqui Falls in 1784. The site today features a lovely set of three locks, a turning basin, a detached upper lock and the Robert Anglin Visitor’s Centre. The main CN rail line crosses over the lower locks on a bridge originally built for the Grand Trunk Railroad in 1853 (originally a wooden bridge, the current steel bridge dates to 1929). One of the four blockhouses on the Rideau is located here.