Green Mountain is an 8.5 mile, 3,300 ft. elevation gain hike in the North Cascades. The WTA hiking guide has this to say.
In a state with so many places offering a day’s walk to big, peaky views, Green Mountain still makes the short-list of Washington’s all-time finest hikes. From woods to meadows to panoramic views and even a historic lookout, it just doesn’t get much better than this.
travel north on State Route 530 for 7.5 miles, turning right immediately after the Sauk River bridge onto Forest Road 26 (Suiattle River Road). You’ll need to drive 25 miles, most of it on dirt roads. There is one turn (to the left) at around 19 miles in. There are good signs pointing the way.
In my experience the hikes in the North Cascades always have amazing views. Maybe this is just because I only go to the best ones. It does take longer to get there than the more popular I-90 and Hwy 2 hikes but even so, on Sunday we got up at 5 and by noon we were here
The elevation profile shows the descending section at about the 3 mile mark and the steep section beyond to the lookout. In the Fall there should be lots of color in the meadow and lots of blueberries. If you don’t mind a long drive this one is worth taking the time to go.