This is a shot of Mark on the longer blue highline that ran from the top of the Rostrum to the valley rim. After a few warm ups on the short line, he walked this one several times.

This is a shot of Mark on the longer blue highline that ran from the top of the Rostrum to the valley rim. After a few warm ups on the short line, he walked this one several times. If you look closely, you will see the road down there... over 1000 feet below.

This is a shot of Mark on the longer blue highline that ran from the top of the Rostrum to the valley rim. After a few warm ups on the short line, he walked this one several times. If you look closely, you will see the road down there... over 1000 feet below.

This is a shot of Mark on the longer blue highline that ran from the top of the Rostrum to the valley rim. After a few warm ups on the short line, he walked this one several times. If you look closely, you will see the road down there... over 1000 feet below.

This is a shot of Mark on the shorter warm-up line before he walked the longer blue one that ran from the top of the Rostrum to the valley rim. If you look closely, you will see the road down there... over 1000 feet below.

This is a shot of Mark on the shorter warm-up line before he walked the longer blue one that ran from the top of the Rostrum to the valley rim. If you look closely, you will see the road down there... over 1000 feet below.

The boyz play on a sloping rock down by the Merced River somewhere near the Rostrum, simple looking but rather slippery.

Jesus Eyes watches Diamond D. traverse a black dotted rounded chickenheade boulder off the higheay along the Merced.

Late summer season, a number of lines of varying lengths were set up at the top of the rostrum. Kids camped out and worked on psyching themselves up for this terrifying, humbling version of a slackline.

Canadian Sean gives us his 80s rocker look from a crack in a boulder along the Merced River. That is a gross pond below him.

Dave Marra cranks up some boulder problem west of the Rostrum a few miles west.

Sean Elliot of Jasper, Canada does some moves a few miles west of the Rostrum.

Here's Dan D cranking the 11a sequence on the left hand variation of Pitch 2. Edit:submitted photo too large by accident

I got past the crux but couldnt hang on.

High angle rescue training, October 2006

Topo adapted from image posted to the Mountain Project by Scott "Scoboni" Powell.