Still trekking to Khumjung. On the way, we passed the airstrip at Syangboche (12,795'), the highest airstrip in Nepal, built in 1995. We had quite a long, uphill trek to reach the air strip. You can see a helicopter coming in for a landing. Soon after it opened, the lodge owners from Lukla went on strike and blocked the runway because the strip was being used to fly trekkers directly back to Kathmandu bypassing Lukla. They were losing business. The strip is now used only for cargo shipments. There were piles of dressed lumber waiting for porters to carry to building sites. Their loads must have weighed at least 80 or 90 pounds.