As of October 30, 2002, all DOQs and DOQQs are beautifully indexed.
We also have some Oregon orthophotos. They are not shown on the map, but can be found in the Washington tables, or in Baker and Canyon City.
download index map of quarter quads as arc/info .e00 export file.
Here are the hdr (and stx files and bil links) you need to read the
old DOQQ files on the first batch of cdroms.