mapping 2:22:53 [1] 3.71 km (38:28 / km) +26m 37:10 / km
Nice break from work... and now I look at the picture from the AP display of my GPS I understand what I saw on the ground - that dam must have failed or overflowed fairly catastrophically at some point in the recent past, in the valley below is a fan shaped area where the trees are all gone or dead.