1976. 2012-02-23T15:21:51Z. 2015-10-21T15:30:44Z. Canada. Army Survey Establishment. Interior--Geological Survey. English. Public. British Columbia and Washington (State).
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1974. 2012-02-23T15:27:53Z. 2015-10-21T15:30:44Z. United States. Army Map Service. Interior--Geological Survey. English. Public. Washington (State).
1978. 2012-02-23T15:30:45Z. 2015-10-21T15:30:44Z. United States. Army Map Service. Interior--Geological Survey. English. Public. Washington (State).
1975. 2012-02-23T15:32:27Z. 2015-10-21T15:30:44Z. United States. Army Map Service. Interior--Geological Survey. English. Public. Idaho and Washington (State).
1976. 2012-02-23T15:25:23Z. 2015-10-21T15:30:44Z. United States. Army Topographic Command. Interior--Geological Survey. English. Public. British Columbia and Washington (State).