Mosque Lake is located west of Ompah Ontario in Frontenac County
co-ordinates: Lat. 45° 01′ Long. 76° 55′
while the lake reaches depths of 113′, the average depth is 23′
the perimeter of the lake is 13 km (8.2 miles)
the lake has been regularly stocked with rainbow trout
there is a naturally reproducing population of lake trout
there are 3 basins with the southwest one being the deepest and also the one to focus on during the summer lake trout season. During the summer both trout species will move to deeper water although rainbows can be caught somewhat shallower
there is a public boat launch located along Mosque Lake Road on the south side of the lake
Mosque Lake is located in Fisheries Management Zone 18