Major Lake Species:  Largemouth Bass, Smallmouth Bass, Northern Pike, Splake, Yellow Perch, Black Crappie

Lake Facts:

• Upper Rock Lake is located along Opinicon Lake Road southwest of Chaffeys Lock in Frontenac County
• 5 creeks flow into the lake and one exits on the northeast end connecting to Upper Rock Lake
• the lake reaches maximum depth of 140’+
• other than a couple of shallow weedy bays in the south end and one on the north end, the shoreline drops off quickly into deep water on either side of the lake
• there are many overhanging trees and submerged logs along the shoreline
  the lake has been stocked with splake (a cross between lake and brook trout)
• a gravel based public boat launch is located along Opinicon Lake Road towards the north end of the lake
• Upper Rock Lake sits within Fisheries Management Zone 18