This is why I have come here: to ride through the remote Tian-Shan (Celestial Mountains) mountain range along ancient routes and through wide high-altitude pastures, known as jailoos, where shepherds have been grazing livestock for centuries.

BBC: The way of the shepherd: Horse trekking through Kyrgyzstan

Set deep in the Purcell Mountain range and reaching jagged and sharp into the sky, 2, 651m-high Mount Nimbus is the kind of wild and extraordinary place that few casual mountaineers can usually reach.

BBC: North America by cable and bridge