The Tooth is a jagged peak just a few miles from the Alpental Ski Resort in the Alpine Lakes Wilderness that is a must for any alpine climber. The climbing is moderate, the access is easy, and the views are rewarding. Expect some company when the weather is nice, though there are plenty of rappelling stations on this peak that help minimize bottlenecking for those ascending and descending. The south face is the most popular route. It's essentially vertical, which opens the route up in all seasons when the sun is out.
From the Alpental parking lot, take the Snow Lake Trail through the old-growth forest and over a few small streams. You'll hit a fork and want to keep left to reach Source Lake. Hike the trail for roughly a half mile through Gold Creek Valley and into a stream gully, where you can gaze up Pineapple Pass to The Tooth. Cut across the small boulder field to find the climber's trail that is marked with cairns.
Watch your footing on the talus field as you approach a notch that has several slung boulders. This climb can be done in three pitches. Some of the best holds make you feel like a pro climbing an exposed multi-pitch. Enjoy the rewards and expansive views of Denny Mountain, Bryant Mountain, Snoqualmie Mountain, Chair Peak, Guye Peak, McClellan Butte, Humpback Mountain, and the mesmerizing Mount Rainier.