Crack Climbing at its finest.
To access Lost Arrow Spire, BB, and Sentinel Rock:
Featured Route For Lost Arrow Spire
Caught in the Act 5.9+ SD : Mount Rushmore National Mem... : ... : Lost Arrow Spire
Stem across the gully to clip the first bolt, proceed directly above to gain a nice ledge. From the ledge, take the finger crack as it widens and eventually ends; then continue up and left to the anchors. ...[more] Browse More Classics in SD