I need a rock of harder composition than the chockstone.    From Wordnik.com.  [Between a Rock and a Hard Place] Reference

The next chockstone is wedged a little higher off the ground.    From Wordnik.com.  [Between a Rock and a Hard Place] Reference

I found a chockstone above my head, and managed to force my foot free.    From Wordnik.com.  [Prester John] Reference

I lower myself from the chimneying position and step onto the chockstone.    From Wordnik.com.  [Between a Rock and a Hard Place] Reference

Then I feel my arm bend unnaturally in the unbudging grip of the chockstone.    From Wordnik.com.  [127 Hours] Reference

When I look up, the backlit chockstone falling toward my head consumes the sky.    From Wordnik.com.  [Between a Rock and a Hard Place] Reference

This chockstone pinning my wrist was stuck for a long time before I came along.    From Wordnik.com.  [Between a Rock and a Hard Place] Reference

A dimesized piece of rock pops off the chockstone and falls onto my trapped wrist.    From Wordnik.com.  [127 Hours] Reference

I put my Nalgene below the chockstone in the sand and consider the coming evening.    From Wordnik.com.  [127 Hours] Reference

My hat, webbing, and tourniquet supplies appear in the screen, on top of the chockstone.    From Wordnik.com.  [127 Hours] Reference

I glance at the bloody afterbirth smeared on the chockstone and the northern canyon wall.    From Wordnik.com.  [127 Hours] Reference

Resting the video unit on the chockstone, I get myself settled and try to collect my thoughts.    From Wordnik.com.  [127 Hours] Reference

Instead, I plan to use the rock to pound my knife into the chockstone, like a hammer and chisel.    From Wordnik.com.  [127 Hours] Reference

Time after time, the webbing pulls free and falls to the sand on the other side of my chockstone.    From Wordnik.com.  [127 Hours] Reference

I punctuate each word with slaps of my left palm against the chockstone as tears well in my eyes.    From Wordnik.com.  [127 Hours] Reference

Embittered, I set the knife atop the chockstone, unclip the carabiner, and loosen the tourniquet.    From Wordnik.com.  [127 Hours] Reference

Sure enough, the rock bounces off the chockstone and lurches with the push of gravity for my feet.    From Wordnik.com.  [Between a Rock and a Hard Place] Reference

It was stuck—it was a chockstone—and I stepped onto it, then climbed down off it, and I pulled it.    From Wordnik.com.  [127 Hours] Reference

Friday, then, before someone pops his or her head over that chockstone ten feet in front and above me.    From Wordnik.com.  [127 Hours] Reference

In these coldest hours before dawn, from three until six, I take up my knife again and hack at the chockstone.    From Wordnik.com.  [127 Hours] Reference

I close my left hand in a loose fist resting on the chockstone, shut my eyes, and lower my forehead onto my hand.    From Wordnik.com.  [127 Hours] Reference

Gradually, my shocked nerves relax, and my digits extend until I can let go of the rock, which I set on the chockstone.    From Wordnik.com.  [127 Hours] Reference

Well, if that was it, Aron, then the chockstone should split in two and fall harmlessly to the sand right…about…now.    From Wordnik.com.  [127 Hours] Reference

Without further pause and again in silence, I hump my body up over the chockstone, with a single clear purpose in my mind.    From Wordnik.com.  [127 Hours] Reference

My mind seems determined to find and exploit any seams or natural cleavage of the chockstone to hasten the removal of material.    From Wordnik.com.  [127 Hours] Reference

I wonder after it for a time but lose my thoughts to the insects that are swarming with all-time intensity around the chockstone.    From Wordnik.com.  [127 Hours] Reference

It will be important to use the longer blade for hacking at the chockstone and preserve the shorter blade for the potential surgery.    From Wordnik.com.  [127 Hours] Reference

Cutting my climbing rope about thirty feet from one end, I loop one end of the short piece around my chockstone and tie it to itself.    From Wordnik.com.  [127 Hours] Reference

But in five minutes, I am warm and lay my multi-tool back on top of the chockstone, pull my rope bag over my head, and sit back once more.    From Wordnik.com.  [127 Hours] Reference

I turn my headlamp back on and pick a new target on the chockstone—a beige-pink heart of sandstone ringed by hard black mineral features.    From Wordnik.com.  [127 Hours] Reference

chockstone boulder, which is much harder than sandstone.    From Wordnik.com.  [Telegraph.co.uk - Telegraph online, Daily Telegraph and Sunday Telegraph] Reference

I’m wearing down the edge without any effect on the chockstone.    From Wordnik.com.  [127 Hours] Reference

Why didn’t the last person who came along dislodge the chockstone?.    From Wordnik.com.  [127 Hours] Reference

Reaching up above my head into the kangaroo rat’s chockstone nest, I pull out the rock.    From Wordnik.com.  [127 Hours] Reference