OZ 

Beware of the sleeper first pitch. 5.9 in the "old" guide...

A spectacular route.

There are rap rings on top of P3 and P2 (don't recall about P1). We climbed the first 3 pitches and double rope rappelled back to the base. Very convenient to do it this way.

As good as it gets.

P1 seemed safe. Just go up to the end of the starting crack, place a nut, and then downclimb back to the traverse. Once done with the short traverse, another nut is available in the other crack. You might want to save a #3 camalot for the last 30 feet to the anchor.

P2 was well protected but definitely tricky 10d granite face climbing. Great stuff!

P3 seemed a touch soft to me as well - but damn was it good!!! I expected lots of #1 camalots based on the various guidebook descriptions, but the business turned out to be green and purple camalots. Next time I'll bring triple #0.5,#0.75, and #1 camalots. and save one of each for the final steep section.

P4 was fun and airy. Watch out for the death blocks after you turn the corner.

We continued on to Hobbit Book - a highly recommended linkup. Next time we'll do Gram as well. Once topping out on Hobbit Book, we just walked South and picked up the Muir trail back to the Cathedral Lakes parking lot. A very simple descent provided you have a car shuttle or similar.

My rack next time: set of nuts, set of small cams, 3x#0.5, 3x#0.75,3x#1,2x#2,2x#3 camalots.

I agree with Andy that the corner pitch is soft for the grade. The footholds are quite good. The 3/4" pieces seem to be the ones most frequently called for. While you can get bigger gear in occasional openings, this size would be the easiest to place when you're pumped. I'm bringing three .75 C4s next time.

One of the best. Grades felt acurate- it was cold and windy though. Saved green camalots for the top due to the hype and wished I had placed them lower and saved purple for up high.

Pitch 2 was definitely the butt kicker on this climb. Once done with that the corner was pure pleasure. No need for more than doubles of finger size if you keep your eyes open for other possibilities.

Approach: Mellow approach, you can go left at the base of the talus field and straight up over boulders to the climb, or walk the path around the right and it hooks back into the base of OZ, Left is a little more convenient in my opinion.

P1. Committing Moves off the ground until about 15 feet up where you make your first placement. Very fun climbing through the first 10A moves or couple moves over a tiny roof/ bulge. You can mantle or just keep moving your feet up and climb right through it. Then follow the easy crack up and left to the nice belay that is fixed.

P2. Crux pitch for some. If your a 10D face climber you will be so pumped on this pitch. Beautiful slopers and crimps. The first crux is just after the belay, you get on a little ledge then have to figure out a very nice crimp sequence to a long reach out left on a fancy little knobish thing. 2nd crux is a tiny little bulge at the top of the sport section of this climb and requires delicate climbing. Continue up a short crack to the base of the main dihedral for P3 and build your anchor here. Takes .75, 1, and maybe another smaller piece so make sure you don't use to many bc you will need them on P3. The face climbing requires 8 or 9 quick draws and a micro nut placement in the middle.

P3. Beautiful crack dihedral. Focal point for this climb looking up at it. Requires some endurance but the feet become so perfect to stem off. A classic for sure! The anchor is at the top of the crack before the Gram Traverse. There are two bolts but one is loose, so use the crack left of it to help make a safe anchor.

P4. Traverse out left on hard to find crimps and feet on two sport bolts. Turn the corner, takes a great cam placement. Move down and left to a arete. Climb over the arete on the left then clip a sport bolt. Once clipped move up one easy climbing to finish the climb. Belay up and then either traverse out left on 4th to walk off or go straight over the top.

Best climb I've done in tuolumne. ( Great link up from on the Lamb. If you can climb 10D you have to do the Gram traverse, and consider finishing on Hobbit Book. Did the link up of On the Lamb, OZ, Gram Traverse to Hobbit Book in 12 hours moving at a medium pace.

Onsighted while climbing with Ed Henicle on our first day in the Meadow - Sep-3-2010. The 10d crux (face-climbing on crimpy knobs) pitch is very well-bolted - its almost a sport/gym route - probably would be 11a in our gym. Super-topo says the dihedral takes lots of 1 inch cams - not the same as BD #1. You want alot of #0.5 BD C4s (purple). I'd say protecting the start is PG13 (with G being 100% straightforward). We decided not to do Gram Traverse though - trad-leading at my limit under supposedly large loose death blocks didn't appeal to me, so we did the standard finish. However, there are some loose holds on the standard finish also. After one (blindly) turns the arete, while stepping down, two holds present themselves - they are as loose as they are positive & inviting. Avoiding them makes the move harder than one would have initially expected. The walkoff isn't too difficult, but try to do it in the daylight.

A great first day in the Meadows!

Did OZ to Gram Traverse. Best multipitch route I've done to date anywhere! Varied and sustained 5.10 climbing. the Gram Traverse was AWESOME and well protected, however the follower should be a confident 5.10 climber.

I agree that the .10c crack pitch felt soft as compared to other valley .10's, the stems are secure and almost every move is a rest through the steep section.

Use your .5 and .75 BD cams sparingly, if you only have two of each, walk them when you can and don't waste gear on the easy section of the crack (bottom part).

P2 & P3 are gems. P2 felt kinda tricky with interesting and varied face climbing that was well bolted. P3 seemed kinda cruiser for 10c, absolutely stellar corner with bomber gear. Agreed that #.5 & #.75 Camalots are the meat of it.

I found #0.4 and #0.5 Camalots to be the most useful in the dihedral. Used only 1 #0.75 and 1 #1.

Climbed it again and modified my gear list. The belay below the corner needs #1 and #0.75 camalots - it is hard to make nuts work.

So, my revised gear list for next time:

2x #3 (p1)
2x #2
3x #1s (one for the belay)
4x #0.75s (one for the belay)
and as many #0.5 camalots as I can carry :)
1x set of small cams
1x set of nuts

Seriously though, this thing will take an endless number of #0.5 camalots in the top third of P3, so bring as many as you need to feel comfortable. Sure you can make other things works, but if you got em - bring em.

SPOILER ALERT - After the 10d P2 crux, when you are under the bolt, continue moving left... NOT up to the bolt. I made the mistake of going up this time and it didn't work out so well.

First moves on the first pitch were the most heady for me. Some delicate face climbing with only a small came behind a suspect flake to keep you from the ankle breaking fall.
Route gets sun around 1pm (in August). So a late start isnt a bad idea.
Two thumbs way up!! Love the name of this route, needless to say we honored the name at every belay.

.4 camalot is good and the Metolius orange which is a little smaller than the purple camalot. Run it out on the lower angle section of the dihedral if you are worried about not having enough cams.

At the start I climbed the little arete to the left as I watched a guy make a big reach there the day before. My partner said it he didn't have to make a big reach. Either way I wouldn't want to fall so have your head together.

Don't belay at the chains at the top of the second pitch, instead continue up another twenty feet to the base of the dihedral, Its far more fun to climb the corner with no junk to start off, the extra .75. 1, and nut aren't needed for the pitch so won't take up space on your harness. Also if you are quick, go mid afternoon, take two ropes and go to the top of the third and rap twice, quick, easy, no crappy fourth pitch to mar the otherwise great route.