Berkeley Ironworks climber Tim Medina has been cranking hard in Yosemite Valley for years, establishing a slew of first ascents. One of his best is Diesel Power, a highball V10 located along the trail west of Camp 4.
Tim stated about the climb, "Randy (Puro) cleaned this amazing line in the Crystals and asked me to help him figure it out. After three days of throwing our selves at the problem I unlocked a sequence and had success."
The temps in Yosemite are perfect right now, and though Diesel Power may be under spring water, at least this video of Tim crushing the problem will get you pysched to go boulder in the Valley.