A maximum value experience not to be missed. You will find a bit of everything on this classic which has been described by at least one experienced regular as a "great 5.9 with a 5.11 crux". Your experience may vary but you will definitely consider an ascent worth your time.
Not recommended for a 5.9 leader.
Location
From the intersection of the East Face trail and Upper Broadway (base of Castor) turn right (North) and walk to the high point ~20 ft in front of you shaded by a pine tree. You will see a thin crack in the wall leading to a horizontal feature about 20' up. Climb the thin crack (cruxy), traverse right then stem (strenuous) and finally face climb to the top.
Protection
A little bit of everything. Did you remember your small gear?