Elbow Lake is a popular fishing and camping destination in Kananaskis Country. The hike to Elbow Lake is about 1.8 km one way with an elevation gain of 200 m.
The brook trout in Elbow Lake is pretty small but easy to catch.
The parking lot gets full pretty fast because many people stay overnight and camp by the lake. 
Elbow Lake Directions
Elbow Lake Fishing Regulations
Elbow Lake falls under general ES1 regulations.
It is open year-round but highway 40 to get to the lake is closed from December to June.
Check Alberta Fishing Regulations for up-to date rules.