Babban Ramin Arewa

Babban Ramin Arewa shine ramin jirgin kasa mai nisan kilomita 1.6 a karkashin garin Seattle, Washington, wanda Babban Railway na Arewa ya kammala a cikin 1905,  yanzu mallakar BNSF Railway, a kan Scenic Subdivision. A lokacin da aka gina shi, shi ne mafi tsayi kuma mafi faɗin rami a kasar Amurka, a   tsawo da   fadi.

Ƙofar kudancin tana arewacin King Street Station, kuma arewacin Victor Steinbrueck Park, tsakanin Virginia da Pine Streets. Ramin Jirgin Ruwa na Downtown Seattle ya wuce ƙafa huɗu a ƙasa da Babban Ramin Arewa.
alt=A plaque that reads, "Great Northern Tunnel - Completed in 1905, this one mile long railroad tunnel provided access to the new passenger depot and the expanded freight yards south of King Street. The tunnel was built at the suggestion of city engineer R. H. Thomson to relieve growing street congestion in downtown Seattle."|thumb|270x270px|Alamar tunawa da kammala Babban Ramin Arewa a cikin 1905.
Jirgin kasa na jigilar kaya da fasinjoji suna amfani da ramin, gami da sabis na Amtrak zuwa Chicago (Mai Buƙa na Empire) da Vancouver, BC (Cascades), da kuma sabis na jirgin kasa na Seattle-Everett Sounder na Sound Transit.
alt=A more distant view of the South Portal of the Great Northern Tunnel|thumb|Bayani mai nisa na Kudancin Portal na ramin

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