What happed to the Halfmile PCT Maps printable PDF files?
Halfmile’s PCT maps have been replaced by a new series of Pacific Crest Trail map booklets from National Geographic. These maps can be purchased from the Pacific Crest Trail Association online store or other National Geographic Map retailers. Read about the changes at this link.
Can I still download PCT GPS data and Trail Notes?
How can I contact Halfmile?
What do the letters like CS, WR, TR, etc. on the Halfmile Trail Notes and GPS data mean?
Waypoint abbreviations are explained in this blog post.