This trail leads to the vicinity of Hadley Glacier and Hadley Peak. The trailhead is at the end of Wells Creek Road, which is accessed from Washington State Route 542 (Mount Baker Highway).
Beta Cephei pulsates regularly every 4 hours 34 minutes, producing a variation in its visual brightness of 0.11 magnitudes.
Cougar Divide (wta.org) This page does not have a writeup but the comments provide useful information.