Suggested Page Improvements to Guye Peak
For routes on the south or east side:
From Seattle: Drive east on I-90, exciting at the Snoqualmie Central/Alpental exit, exit 52. Turn left onto rd 9041 and then right onto Erste Strasse. For the south face, park in a pullout along Erste Strasses or one of the connecting streets. Be careful to comply with posted parking signs, as there is a lot of private property in the area. From the east take the same exit and turn right onto rd 9041.
For other routes on the mountain, you can park at the Commonwealth Basin trailhead (now called the PCT North trailhead, as the first few miles of the Commonwealth trail is abandoned) and head up the PCT into said basin.