Like British Columbia, Montana’s northwest corner, where BC Hwy-93 ends and US-93 begins, is an isolated land of dense forests, broad rivers, and glaciated valleys. Besides providing natural habitat for herds of moose, elk, bison, and bighorn sheep, not to mention mountain lions, wolves, and grizzly bears, the thick groves of cedars, pines, and firs support the Northwest’s other endangered species—the logger—whose angular clear-cuts and monocrop tree plantations are also apparent as you pass through the region.

The first sizable town, nine miles south of the border, is Eureka (pop. 1,037), a sleepy little place with a pair of gas stations, a couple of cafés, and Tobacco Valley Historical Village (406/297-7654, summer only), a fascinating collection of pioneer buildings, preserved and moved to a small park along US-93 at the south end of town.

For a truly unusual experience, spend the night in the former U.S. Forest Service fire lookout (around $35) atop Webb Mountain, about 24 miles southwest of Eureka. It’s popular; for details and rental availability, contact the U.S. Forest Service ranger station (406/296-2536, www.reserveamerica.com) in Eureka.