Mountain Gem (sternwheeler)

Mountain Gem at Eureka Bar, on the Snake River, circa 1906.
History
Name	Mountain Gem
In service	1904
Out of service	1912
Identification	U.S. #201045
Fate	Abandoned 1924
Notes	Machinery to Grahamona in 1912.
General characteristics
Type	Riverine all-purpose
Tonnage	469 GT; 282 NT
Length	150 ft (45.72 m)
Beam	26.5 ft (8.08 m)
Depth	5 ft (1.52 m) depth of hold
Installed power	twin steam engines, horizontally mounted, each with bore of 13 in (33.0 cm) and stroke of 72 in (1.83 m)
Propulsion	stern-wheel
Speed	19 miles per hour
Capacity	200 passengers (day excursions); 75 overnight

Mountain Gem was a sternwheel-driven steamboat that operated on the Snake and Columbia rivers from 1904 to 1912, when the machinery was removed and installed in a different, newly built steamboat. Mountain Gem remained on the U.S. merchant vessel registry until 1922 or later. Although Mountain Gem was not abandoned until 1924, there is no evidence it was used after 1912.