This content does not fall strictly into the stated criteria of either of the navigation threads on this forum, however I believe it is relevant info. I am posting it here only.
National Geographic has apparently scanned all or nearly all of the USGS topo maps and they are available for free download at the web address below. The format is 5 letter size sheets with the first sheet being information relevant to the download. Format is PDF. The one I downloaded and printed scaled as 1-7/8" = one mile, so very usable.
National Geographic has apparently scanned all or nearly all of the USGS topo maps and they are available for free download at the web address below. The format is 5 letter size sheets with the first sheet being information relevant to the download. Format is PDF. The one I downloaded and printed scaled as 1-7/8" = one mile, so very usable.