In reply to Rylstone_Cowboy:
Our "Offwidth" Cubic Block notes (the first main grades are the new YMC grades):
Immediately south is the impressive Cubic Block, climbs are listed anticlockwise from the ease side of the south face. The easier climbs on the east face of the block are now highly polished and quite tricky to start as a result. The easiest decent is on the left (south) side, with a worrying sloping shuffle down a groove, then stretching across a narrow gap to an exposed block, with a long drop below. Many lower-grade climbers may wish to stay roped-up for this.
Cubic Slab Traverse (4c) possible V0 4c*
The long low L-R traverse of slab on low break is quite sustained at the start and finish sections.
Old Corner S 4a* [HVD* P1; HVD P1; HVD] (HVD*) probable P1
The left-hand line on the wall is better and harder than it looks, reachy and requires care with some rounded holds at the midway bulge. Tough for short climbers.
Shorties Dilemma S 4c* [S P1] (S 4a) probable P1
Climb the wall right of the arete at a polished pocket. Good if reachy moves above retain the fun. A good climb.
Heather Wall S 4b* [S* P1; MS* P1; MS] (S 4a) probable P1
Leaving the ground involves hard moves on polished slopers; if all else fails move in from the left. The climbing is more straightforward above and eases gently with height.
Heather Wall Variant HS 4c [HS 4b P2; MS* P1] (HS 4b) possible P1
A bouldering start to the main line. Good moves.
Great Slab HVD 4a* [HVD* P1; S* P2; S] (HVD) probable P1
Another hard start but very good climbing above with optional finishes left, right or slightly harder, straight up at the top
Square Root HS 4b* [HS 4b* P2; VS 4c* P2] (HS 4b*) possible P2
Hardest but well protected in the lower sections; easier but bold above.
Cubic Corner MVS 4b** [= P2; HS 4b** P2; HS] (HS 4b*) possible HS 4b** P2
A lovely little arete which is increasingly bold with height. Normally started from the block but there is a worthwhile optional start traversing in from Square Root. The route may once have deserved P1 but the spaced cam placements are worryingly worn these days.
Rough Wall VS 5a*** [= P1; =; VS 5a] (VS 5a***) probable VS 5a** P1
An excellent climb but perhaps too unbalanced to deserve three stars. The crux sequence is superbly positioned at the very top, and is hard and perplexing.
[Rough Neck HVS 5a* [= P1; VS 5a P1] (VS 5a*) possible P1
A direct finish to rough wall with reaches to hidden holds and some hard moves in an impressive position to reach the top.]
Moss Side VS 4c** [= P1; =; VS 4c] (VS 4c**) possible P1
Any independent start right of Rough Wall is very lichenous so most start on the clean rock. Trend right to a ledge on the arete and move back left to a superb finishing sequence ending in a precarious top-out. Brilliant but high in both grades.
Cave Chimney S 4a* [HVD* P1; MS* P1; MS] (HVD*) possible S 4a* P1
The leaning chimney looks a bit grotty but gives continuously interesting climbing in an impressive position; big cams useful.
Just right of the overhanging rear of the Cubic Block are the Cubic Slabs. These were criminally understated in past guidebooks, relegated to a mere beginners top-rope venue. They give several very exciting padding variations for lower grade trad climbers, only the main lines are described below.
Cubic Slablet D 4b possible D 4b P1
The slab on the gully sidewall gives pleasant well protected climbing from a hard start that can be done with varying degrees of elegance.
Left Cubic Slab D 2c [M] possible D 2c P2
The easiest line starts up chips in the middle and trends to the left arete. Easy but bold as it involves some unprotected friction moves just above the start.
Slab Central HD 2c** possible HD 2c** P3
Start up the chips in the middle, trend left than back right to a blind flake finish. A brilliant sustained and unprotected solo which will feel slightly harder for shorties. Perfect practice for those Tuolumne approaches.
F4 possible U8 4c
The easing padding line to the right from a hard start.
Slab Right HS 4a*/F3 possible HS/U8 4a* P2
The right arete gives a lovely padding route with good gear only arriving after the hardest moves.