After plans were announced for multiple dams in Mongolia's Selenge River watershed, award-winning author and veteran flyfishing guide Peter W. Fong was spurred to learn more about this remarkable ecosystem. On a first-ever scientific expedition from the headwaters of the Selenge to Russia's Lake Baikal, he and an international team traveled more than 1,500 kilometers by horse, camel, kayak, and rowboat through one of the world's most rugged regions...