I chose to go up 121, but it was pretty steep and I couldn't find a spot to get started without either my foot or tires sinking into the snow, so I mostly walked the bike up to #120. It would've been easier if I'd taken the time to put on snowshoes, but I left them in the truck. I mostly walked to the left or right of the set of snowshoe tracks in the middle of the trail.
Forthwith on to youtube (search wileydogger if you're inclined to watch a bigger screen):
0-24 sec: After hiking up 121, I took the Snowmobile Trail. Thought I was heading towards the Sno-Park, but after awhile was going downhill. I had gone the other direction and ended down at the Bear Creek Lodge area, just below the Entrance.
24-32: back up above on 120, above where trail 121 & 122 meet 120. Lots of walking.
33-54: somewhere on 120. You'll notice lots of debris on the trail from the heavy winds the day before.
55-1:19: I went up 120 some more to see if I could make it to the Sno-Park. Gave up on that, and rode back down to 121/122. OK, well, um there was some unpacked snow between the groomed snowmobile and the ungroomed snowshoe trail that I knew wasn't going to end well, but it was too late to stop.
1:20 to end: Down Trail 121 to the Entrance lot. I swear this trail sign said 122, but the maps say it's 121.
With temperatures hovering just around 32F, the snow wasn't optimal but it was fun. I mostly had the trails to myself, and met some friendly snowshoers on the way down. No sign of any snowmobiles until I was driving back down the mountain.
There's a fatbike gathering in Winthrop next weekend that I'm on the fence about going. Don't really want to drive 3 1/2 hours, so if don't go can head back to Mt Spokane again. If it all doesn't melt by then.