Blood Indian Fishing Derby, June 2nd

Just posting a tournament, Blood Indian, also known as Bigstone is located just south of Youngstown, AB or just north of Jenner. (Trout fishing) June 2 from 7am-6pm. Both adult and kids competitions. Our family goes out every year and has a blast.
Does anyone know of any other fishing derby dates for the summer in southern AB?, or of other good fishing holes in south or central AB