Pissaòra is a deep notch, similar to a vajo, along a large cliff used as a climbing gym, in the heart of Val Garzato.
At the head of the crack there is an imposing and curious dry wall, slightly concave, formed by large square blocks of local magmatic rock: it was built by farmers in the 1930s as a plug, to prevent the overlying soil from being eroded by the rain and dragged down the valley through the deep crack, like in a funnel; above, in fact, there was a precious sheet of earth, still cultivated, near the ancient Contrà Cengia.
I strongly advise against climbing up the gorge, because the bottom is very steep, earthy, slippery and slippery... the descent rather than the climb could be a big problem; better to look at it from below and from afar.