Hit up this hike right before winter hit in full! Coming down from Bellingham, I picked up some friends in Seattle and went off to Kelly Butte hoping to get to the lookout and do some skiing. It took us about 1 hr 45 min to get to the trailhead from Federal way. The logging ads are all over the place up there and its pretty easy to get lost if you don't have a map. But we had one and it was a piece of cake getting there.
The Trailhead was right at 4300Ft. and there was no snow. Pretty bummed out that there would be no skiing we reluctently left the skis in the the car (this place is notorious for car break-in's, and I can easily see why with the sheer amount of people form Seattle coming up all the time). It took us 15 min to walk the .6 mile old closed off logging rd to the start of the trail. The beginning of the trail is pretty awesome and I commend those who made it, cause it really is a masterpiece of a trail set right into the steep mountain slope. It took us around 20 min to get past the steep switchbacks, then another 20 min to cross the longer slightly uphill slope to get to the lookout. There were snow patches on the top, but not anything deep, and we got there around 5:20pm without the use of headlamps.
The lookout itself I was told would be open. We got there to find a wooden storm door covering the original door, it was still intact, but was missing a couple boards out of the middleI. I was supper bummed, but on looking closer, I saw there were only 4 long philips head screws holding it in place. My friend had a leatherman with a screwdriver on it, and after taking turns, the door came off and the original door was unlocked. The lookout is pretty nice. There were some beers there left by previous visitors. There were 3 of us, one of which slept on the nice cot, and the wooden bed with minimal padding fit the other 2 of us. There was a table for cooking on, probably around 4 chairs, and some fuel supplies for stoves like the msr pocket rocket etc... I was dissapointed to see that the original fire finder device had been taken out. There is no water at the top except for some in containers in the lookout. All the shutters were locked for the winter. We hung out, played some games and went to bed. It was howling all night long, and we woke up to 3 inches of new snow. We used a lot of snow melting for breakfast. After sweeping up, making sure it was good for the winter and signing the book, we started out back to the car.
The hike back wasn't bad, and because the trail on the top flater section is indented in the ground about a foot, the trail was relatively easy to find in the new snow. The sketchy part came when the switchbacks appeared. Because the majority of the switchbacks are stepping stones, it is really slippery, and one wrong step can lead to a slip down the switchbacks. We made it back to the car in about 50 min, where we found the car was still intact, and also covered in about 2 inches of snow. We put on chains, but in my Subaru Forester, we really did not need them. There were a lot of trucks mobbing around the area and a lot of people were out hunting.
I would take every precaution because of the snowfall, and the fact it's pretty slippery. Pretty soon the switchbacks won't be accessible, and the only way up will be if there's enough snow to kick steps up the steep embankment. That is of-course if you can even access the trailhead by car. (there was snow all the way down at 2500Ft. So my guess is that we were the last ones up there for the winter, but if you're feeling adventurous and well prepared, it's a pretty awesome place, and well worth the hike. Feel free to ask any questions in the comments.