Not for the faint of heart, but if you strap on your big kid boots this summit can certainly be done as a day hike. You don't have to worry about any wayfinding past the trailhead, as the trail is well worn in. What's surprising is how empty it is. I suspect people have been avoiding it due to the prospect of the additional 2.5 miles you'll have to hike if the tree farm gate is closed. It seems like this is a seasonal gate that is now open for the summer.
To get there, you'll turn off Hwy 101 and drive along a gravel forest road past several turns. But each one is pretty obvious as to which way you need to go. The road is in fine condition, just a couple of tiny potholes. Most of the Y's you come to on the road have one side marked as "Road Closed." This makes it easy to decide which way to go. There are several rocks/stumps along the way with mile markers spray painted on them. When you get to the stump marked "6," park off to the right side of the road. The trailhead is less than 100 yards away, just around the bend from there.
We set out from the trailhead around 10am, prepared to spend all day making the summit. Bring plenty of water, as there is none along the ridge. The first mile or so climbs up at a decent clip, switchbacking up to the spine of the ridge. You'll go through some very open areas, which still bear the scars of recent logging. Don't worry, it's not too long before you'll enter the wooded, rolling spine of the mountain. Continue to hike the next few miles in the shade. There's a few ups and downs, just don't think about how the downs will feel coming back up…
Maybe around 5 miles (just a guess) you'll see a sign for the Brother's Wilderness Area. Prepare to climb from here. And climb. And climb. There's a few false summits which can be a bit disheartening. Don't give up though! Keep toiling away because the view from the summit is absolutely worth it. On a clear day, you'll even be able to see downtown Seattle.
I brought trekking poles with me, but didn't actually feel like I needed them until the descent. My legs were a bit shaky from the climb, and there is a some loose rocks on the trail. Only one tiny patch of snow, which I suspect is probably melted by now. I was so focused on the way up that I didn’t realize just how steep the edge of the trail is, so step carefully. I was glad to have some stiff boots, but you could definitely do this hike in trail shoes. The return hike felt pretty quick, after the initial descent off the summit. And exhausted and exhilarated, we arrived back at the car at 5:30pm. In the end, it took us 7.5 hours to complete this hike.