Two years after Secretary of State William Seward had brokered the purchase of Alaska from Russia, U.S. leaders suspected the British trading post at Fort Yukon might be located on American soil.

Later this spring, barges of heavy equipment will pull away from a launch on Alaska's road system and begin a journey up the Yukon River. More than 100 miles upstream, a tributary, Birch Creek, ...

Later this spring, barges of heavy equipment will pull away from a launch on Alaska's road system and begin a journey up the Yukon River. More than 100 miles upstream, a tributary, Birch Creek ...