コロンビア川峡谷 (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "コロンビア川峡谷" in Japanese language version.

refsWebsite

Global rank Japanese rank

1news.google.com

59^th place

534^th place

1waterfallsnorthwest.com

low place

low place

low place

low place

1web.archive.org

1^st place

1^st place

1historycooperative.org

low place

low place

historycooperative.org

O'Connor, Jim E. (Fall 2004). “The Evolving Landscape of the Columbia River Gorge: Lewis and Clark and Cataclysms on the Columbia”. Oregon Historical Quarterly. オリジナルの2009-03-28時点におけるアーカイブ。.

news.google.com

Staats, David (November 21, 1983). “The Gorge”. Spokane Chronicle. Associated Press ((Washington)): p. A15

nwcouncil.org

“Columbia River Gorge”. 2008年6月2日閲覧。

waterfallsnorthwest.com

"Columbia River Gorge of Oregon". Northwest Waterfall Survey. Retrieved February 6, 2011.

web.archive.org

O'Connor, Jim E. (Fall 2004). “The Evolving Landscape of the Columbia River Gorge: Lewis and Clark and Cataclysms on the Columbia”. Oregon Historical Quarterly. オリジナルの2009-03-28時点におけるアーカイブ。.