Learning to See the Rock

Every climber knows the feeling. You stand beneath a line, chalk up, and stare at what looks like a blank face. Then a friend wanders over, points at a small dark shadow a metre above your head, and says, "that flake there, then match the little edge." Suddenly the whole route rearranges itself. Nothing about the rock has changed. Only your ability to read it.

Reading features is a trainable skill, and it pays off disproportionately on British rock. Our crags are not generous. Gritstone, limestone and sandstone rarely offer big, obvious holds in helpful places, so the climber who can spot a subtle flake or a half-finger pocket will unlock sequences that others simply walk past.

Flakes: The Gifts That Keep Giving

A flake is a section of rock partially detached from the face, and it is probably the single most useful feature you can learn to spot. On gritstone especially, flakes come in every size, from letterbox ledges you can lay a whole hand into to thin vertical ribs that only accept the tips of your fingers.

Look for a change in the colour of the rock surface, often accompanied by a fine shadow line running parallel to the edge. Get your eye close to the face and you will usually see a hairline crack or a slight lip. Flakes are usually climbed as sidepulls, layaways or, on steeper ground, as underclings with the thumb catching the lower edge.

• Tap before you pull. A hollow, drum-like sound means the flake is detached. Test it gently and be honest about what you find.
• Pull down, not out. Flakes are strongest when loaded in the direction their edge faces.
• Look for stacked flakes. Two or three small flakes in a vertical line often make up a whole sequence where a single hold does not exist.

On sandstone, flakes can be softer and more friable, so check whether the rock around the edge crumbles under your finger. If it does, treat it as decoration rather than a hold.

Pockets, Holes and Nubbins

Limestone is pocket country, and learning to judge a pocket's depth and direction is a skill in itself. Some pockets face downwards and are only usable as undercuts. Others are shallow, greasy and best used as a smear for the foot rather than a handhold.

When you find one, work out how many fingers actually fit and in which direction. Two fingers pointing up is a very different proposition to three fingers sideways with the thumb pressed against the outside. On harder lines, a two-finger pocket may be the only link between two decent holds, so it is worth practising how your hand feels in different orientations before you commit.

Gritstone offers its own version: small embedded pebbles, sometimes called nubbins, that sit in the surface like currants in a pudding. They make excellent footholds and marginal fingertip holds. Look for slight bumps with a different grain or colour to the surrounding rock, and test them carefully with a light touch before weighting them.

Subtle Edges and Sloping Grit

Not every hold is a hold. Many of the best are barely there: a slight ripple in an otherwise featureless slab, a small step where one band of rock meets another. These are the holds that separate a frustrating day from a satisfying one.

Train yourself to look for breaks in the texture. Gritstone slabs are full of tiny edges that only become visible when you get close and look across the surface rather than straight at it. Try shifting your head sideways: features that vanish in flat light often appear as a faint shadow when viewed at an angle.

Slopers deserve special mention on grit. A rounded, friction-dependent hold with no positive edge can be completely invisible from below. Chalk marks are often your best guide, and so is looking for a slight darkening or polish where generations of hands have passed over the same spot.

Chalk, Lichen and Other Clues

Other people's chalk is a map. White smears at hip height usually mean a hold has been brushed, chalked or used as a resting point. On popular routes and problems, a line of chalk marks can effectively draw the sequence for you.

But chalk lies. Some climbers chalk holds they then ignore, and some routes see so much traffic that the marks are misleading. Treat chalk as a suggestion rather than an instruction, and always ask whether the hold makes sense for your body, your height and your strengths.

Lichen and moss tell a different story. Clean rock in an otherwise green face usually indicates regular traffic, while undisturbed lichen suggests either a hold nobody uses or, more likely, no hold at all. Water streaks and darker bands can reveal a drainage line that may hide a hidden edge or a small flake.

Practising Your Eye

Reading rock is not a talent, it is a habit. The next time you walk past a boulder or the bottom of a route, stop and give yourself two minutes to pick out three features you would use. Then look again and try to find three more, smaller and subtler than the first set.

Watching other climbers is equally useful, but not just what they do. Watch where their eyes go before they move. Watch them pause, adjust a foot onto something you cannot see, and suddenly commit. That pause is the whole skill in miniature.

Finally, remember that reading rock is not only about finding holds. It is about judging what will hold you, what will break, what will be greasy in the rain, and what is worth brushing. A sequence built on honest holds is almost always better than one built on hope. Take your time, look closer, and the lines that once seemed blank will start to open up.