Your search for "AREA47.7547.625-123.5-123.375" revealed the following:

~ Chimney Peak WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1990, updated 1990

~ Chimney Peak WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Current, 2014

~ Chimney Peak WA topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 2011