- Diablo Dam is one of three dams along the upper Skagit River in Whatcom County, Washington and part of the Skagit River Hydroelectric Project that supplies Seattle with some of its power needs. The dam was built in Diablo Canyon, a gorge of solid granite with vertical walls rising 160 feet (49 m) from the river bed, yet were less than 100 feet (30 m) apart. Construction began in 1927, and was completed in 1930. The dam began generating electricity in 1936.
- Vesper Peak (summitpost.org)
The majority of people who attempt this summit do so by the standard hiking route. For the technically inclined, climbing routes are also an option. The main route to Vesper Peak starts where the Sunrise Mine road ends. Even the view from the end of the road is pretty good. Looking up to Morning Star Peak and Sperry Peak gets the blood pumping.