Your search for ""usgsnw48.75-122.5"" revealed the following:

~ Bellingham South WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 2011

~ Bellingham South WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1998, updated 2003

~ Bellingham South WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1954, updated 1995

~ Bellingham South WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Current, 2014

~ Samish Lake WA topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1954, updated 1960

~ Samish Lake WA topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1918

~ Samish Lake WA topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1918, updated 1940

~ Bellingham South WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1954, updated 1984

~ Samish Lake WA topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1918, updated 1947

~ Bellingham South WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1954, updated 1973

~ Bellingham South WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1954, updated 1959