The Rostrum is probably the most enjoyable multi-pitch 5.11 in Yosemite Valley. Pitch after pitch of clean, steep and outstanding crack climbing.
Pitch 1. 5.9 - Lie-back and jam your way past a piton and exit to the belay station via a 5.8 squeeze chimney.
Pitch 2. 5.11a - Step off from the belay ledge and do a short traverse left. Climb up and into a short fingercrack which starts really thin (5.11a crux). Do several pumpy moves before you get in a perfect hand jam. Continue up a varied crack via jamming and some lie-backing. Jams in the upper portion of this pitch are wide.
Pitch 3. 5.10b - One of the best pitches on route. Jam and lieback up a mostly hand to cupped hands sized crack and through a short roof (crux). The corner above is incredible with thought provoking stemming moves close to the belay ledge.
Pitch 4. 5.11c - climb up a few feet of easy but unprotected slab till you get into a beautiful splitter finger-crack. Look for small edges on the face - they create pretty good stances for placing pro. Gun it through the last 10 feet of the finger-crack into a "rest" from which you can place gear. Get as much rest as you can and prepare for the final punch. Steep flakes that are more like face climbing than a lie-back take you to the final thin crack and to a alternative belay ledge. The pitch continues up enjoyable hand and fist jamming to a bolted belay.
Pitch 5. 5.10d - Even though rated 5.10d you will see some good whippers on this one. Incredible hand, finger and fist jamming take you to below a giant roof. Protect at the lip and gun it up about 10 feet of strenuous lie-backing to another bolted belay.
Pitch 6. 5.10c - The technical crux is 5.10c face traverse right into a crack system. Majority however, will find the real crux to be the 5.10a OW higher. Jam your knee and stack your way up a left leaning OW. Don't forget the #5 cam! Airy step right to a bolted belay.
Pitch 7. 5.11b - Step left from an overhanging hand crack and climb up steep cracks till it becomes overhanging. Finger lock and stem before making a leap for the jug in the end of this incredible pitch. WOW
Pitch 8. 5.9 - Probably least enjoyable pitch of the climb. Traverse right under a roof and get into a wide crack which bulges - very awkward. Continue up an OW which widens and loses its steepness as it progresses. Leave your #5 and run it out to the top. Or take the 5 with you since the rope might push it into the crack if you don't extend it.
Congrats, you just climbed one of the most classic free climbs in the World!
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