From the trailhead, you'll set out on a fairly wide trail meandering through large trees. Note the giant crib wall in the first half-mile of the trail; built and completed in one work party! You will also walk over several humps marked by a boulder on each side; these are drains, doing great work diverting water so that trail erosion is kept to a minimum.
The first two miles of trail are mostly in the shade. You'll cross some small stream trickling off the hillside and be surrounded by signature lush western Washington forest.
After two miles of gentle climbing, the trail narrows and becomes slightly more exposed. On the plus side, this means you begin to be able to see mountains here! It may get hot — have sunscreen with you and reapply as needed.
If it's clear, the views are mostly due west, gradually revealing Glacier, Sloan and Kyes peaks. Your best views are in the final half-mile. If your jaw's on the ground from the view, you're nearly to the top.
At the summit, expect wildflowers and berries in the spring and late summer, respectively. In late fall the colors on the huckleberries are vibrant and stunning. This is a popular trail, so expect to share the summit with other hikers. If you want a little solitude with your views, there are plenty of stopping spots along the way to pause and enjoy a quiet moment.
There is a pit toilet available about 100 feet up the trail from the trailhead. There is a small sign on the spur road going straight ahead at Jacks Pass that leads to the trailhead parking lot.