But the Builder turns north in Fargo onto a BNSF secondary line to reach Grand Forks, North Dakota, while the Northern Transcon heads directly toward Minot. The Builder rejoins the Transcon main route at Minot and continues on to Seattle, though a section branches off to serve Portland, Oregon. BNSF also owns trackage with running rights in Winnipeg, Manitoba, Canada, where it has a yard operated by a switch unit and full crew. The track is maintained by a small track crew. Historical alignments in Montana The portion of the Northern Transcon line from Columbia Falls to Libby, Montana has been significantly rerouted twice since its initial construction in 1892. Kootenai River valley Prior to the opening of the Flathead Tunnel, trains left the modern route at Stryker, Montana and traveled northwest to Eureka, Montana, then traveled southwest along the Kootenai River and rejoined the present-day line at Jennings, located just below the Libby Dam. In 1970, the construction of the Libby Dam formed Lake Koocanusa, flooding the towns of Rexford, Montana and Waldo, British Columbia and the railroad line. This required the relocation of more than of track between Stryker and Jennings and the building of Flathead Tunnel which, like the dam, was constructed by the US Army Corps of Engineers. Part of the original main line from Stryker to Eureka is still in use as the Mission Mountain Railroad. Before the construction of the tunnel, the Empire Builder also had a station stop in Eureka. The only visible remnants of the original route are a stub track at Jennings, where the unused original track still remains close to the current main line, and Northwest of Eureka the original mainline is now a trail that meanders over towards Lake Koocanusa, with the old right of way eventually diving into the reservoir. Haskell Pass The alignment that travelled from Whitefish to Libby via Eureka was created in 1902 to replace a predecessor alignment over Haskell Pass, farther to the south. The pass was named for its founder, Charles Haskell, who in the winter of 1891 had set out to locate a reasonable alignment for the Great Northern railroad to take between Kalispell, Montana and the Kootenai River. Ranging as far north as the Canada–US border, Haskell's party eventually returned to Kalispell in early spring, having crossed a low notch in the Salish Mountains on the return trip. A year after