Mckinnon is shallow water. So won't be any access for a while. Carsland has ice pile up there. So I doubt that it will be open any time soon.
Check with Michael from Bow River Shuttles.
http://www.bowrivershuttles.com/ If you sign up for their news letter ( The Stimulator ) they will post pictures of all the launches throughout the spring. So you will know exactally when they are open for fishing.
Rob