Wow, fantastic scenary. Well done for trusting your Plungie to that road. Did the altitude affect the running?
Was nice to be young(er?) and easily do so many things :O)
2700 m or so, can't remember thinking about any loss of power. The Yamaha 350 offroad I had, on the contrary, had suffocation problems above 1500 m, should have been a simple fix (fiddling with jets\air intake\air filter etc) but never figured out the cause.
Am appreciating the road (and railroad) builders of that bygone time, what a job they all did, the impossible always possible.