My error log shows that somebody's browser fails to select imagemap polygons because the coordinates were interpreted as part of a too-long file name. Tell me about it.
capeflattery
concrete
copalis
disappoint
grange
hoquiam
okanogan
pendleton
pullman
ritzville
sandpoint
seattle
spokane
thedalles
vancouver
victoria
wallawalla
wenatchee
yakima

map symbols
documentation from the USGS CDROM
details
about tfw files

Montana
clipped DRG files

questions: ask hgreeness49@gmail.com