chimneying
Chimneying is a climbing technique used to ascend narrow vertical or near-vertical fissures that are too wide to hug but too narrow to stem. The climber uses opposing pressure between their back and their feet or knees to move upwards. This involves pressing their back against one wall of the chimney and their feet or knees against the opposite wall. The grip on the rock is typically less important than the wedging action.
There are several variations of chimneying. Straight chimneying involves keeping the body relatively upright and using
The effectiveness of chimneying depends on the width and texture of the fissure. A rougher texture provides