The M/V Columbia is the largest vessel of the Marine Highway fleet.
Launched by Lockheed Shipbuilding in Seattle in 1974, the Columbia
is 418 feet long, with capacity for 625 passengers and 134 vehicles
(20' lengths). Its 104 total cabins include 45 four-berth units,
and 59 two-berth units, 3 of which are wheelchair accessible.
The Columbia boasts both a fine dining room and a cafeteria.
The gift shop, cocktail lounge, solarium, and forward observation
lounge round out the passenger amenities.

http://www.dot.state.ak.us/amhs/info/general/amhsinfo.html