Just below the split at the top of Lincoln’s Throat on Franconia Ridge. Hiker’s left of the gully

Low density powder transitioned to strong wind board at the top of the gully. ECT revealed a weak layer about 1 foot deep however propagation did not occur due to low cohesion in the slab. PST also showed no propagation. Very small slabs did break off over exposed rock slabs and ice bulges however such slabs were strictly limited to these thin regions and only underfoot