Red Mountain (peak, etc) may be one of the most common. I know it is very common in WA, with at least 6 that I know of- Snoqualmie Pass has one, west of Glacier Peak has one, Cle Elum river has one, B.C. cascades have one, there's one near Sultan, and one near the Chiwawa River.
My favorite are ones that are named after other things, often in groups: Dynaflow Tower, Overdrive Tower, and Hydramatic Spire near Dome Peak; Caradhras, Orthanc, Dol Goldur, Dol Amroth, and Mindolluin Crag near Mount Buckindy; Backbone Ridge includes the Coccyx, the Sacrum, Lumbar Point, Thoracic Point and Cervical Point.
The Pickets are great, though; names like Terror, Inspiration, Fury and Challenger make them legendary in my mind, and I haven't even seen them much less climbed them.