Yup, that's the one!
There's apparently two ways in, but I've only ever taken the one to the south of the lake. It gets you closest to the lake by logging road (deactivated) and then cutblock/skidtrail to the treeline. Last time I was in there, it looked like someone had brushed out the path a bit, so hopefully it hasn't been getting too much fishing pressure - esp from the sledders/icefishing crowd.
Dug up this old pic from a take there a few years ago:
Everything out of that lake is chrome silver like this one with very little coloration. Wicheeda is a higher altitude lake and the water stays cooler throughout the summer, so even in mid-July, the hits are aggressive and the fish are energetic all the way to the net.
Dammit... now I'm itching to get out there... like NOW!