Here’s a great set of pictures from what must be the “first” SOTA Activation from atop Kilmanjaro (6029m/19780 ft) in Tanganyika (now Tanzania in central Africa). Certainly not a backpack nor qrp operation but interesting story about putting a mountain top on the air, especially in 1948!!
From a SOTA perspective, these guys were certainly frontrunners!
HNY! 73, Guy/N7UN