The mountain generally doesn’t get a lot of visit from scramblers and/or climbers unless the goals is to climber the WA top 100 peaks.
The climber’s trailhead begins at the road closure (gated) on the other side of the parking lot from Stuart Lake Trailhead. After hiking on the brushy road for two or so miles, one can start getting on the slope and start working southerly toward the north ridge of Cannon Mountain at around 8,000’. The ridge is mostly a scramble to just west of Coney Lake, and from that point one can see the summit block. To get around the jagged ridge line, one needs to drop down the east slope and continue to traverse southerly, then obtain the ridge via the snow gully.
Top of the snow gully becomes fairly exposed, but mostly class 3 scramble if one is comfortable with the level of exposure. Follow the ridge line all the way to the summit.