Gunnison


Gunnison,

river, 180 mi (290 km) long, rising in W central Colo. and flowing SW, W, and NW to the Colorado River at Grand Junction. It flows through magnificent canyons, notably the Black Canyon of the GunnisonBlack Canyon of the Gunnison National Park,
30,300 acres (12,272 hectares), W central Colorado, in the Rocky Mts. The park embraces the most spectacular stretch of the 53-mi (85-km) long Black Canyon, which is named for the sheer, dark-colored walls carved by the unspoiled
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, a national park. Gunnison Tunnel, c.5 mi (8 km) long, was built between 1905 and 1909 to divert the river's water to the Uncompahgre Valley for irrigation.