West Goose Lake is another excellent trout fishery in West Manitoba/Parkland region that I've fished. It is part of the FLIPPR project so you can fish on it as soon as the ice is off, which will likely be early May.
This lake is stocked with Brownies and Rainbows.
Regulations:
Artificial Lures only
Electric Motors only
One Trout Limit
Personally what I've found works best here, depending on the time of year is:
If there is a mayfly hatch, using mayfly patterns and nymph patterns with floating line. Try to find an area where the trout are rising to the surface for mayflies, and you'll have some fantastic fishing.
For times where there is no mayfly or insect hatch, I use sinking line with leech/shiner patterns and reel them back real quick, its a good method of drawing them out when they're not feeding on the surface.
For late fall, October and early November, depending on what their feeding on, waterboatmen patterns work quite well with floating line, or slow sinking line.
Directions to the lake from Brandon are here:
http://maps.google.ca/maps?daddr=West+Goose+Lake,+MB+%4051.22263642333937,-101.35561466217041&saddr=Brandon,+MB&f=d&sll=51.224854,-101.354949&sspn=0.006128,0.020084&layer=&ie=UTF8&z=8&ll=50.485474,-100.662231&spn=1.593816,5.141602&om=1&msid=100004355216470189010.000001121f974860d3674&msa=0
It is right in the town of Roblin, and hotel and camping is available.
Cheers,
Dave