Renamed quads: first river guide pages, then four-letter quad name abbreviation, then map number, as in: 33-34 whtr 36113b1.tif. In this fashion, they are ordered along the river from upstream start of GCNP/Hualapai boundary.
Files sent to me were on the order of 10 mb. Mine are 150 mb. Perhaps change from indexed color to RGB mode?
Also put on land boundary for NP on whitmore point SE, with pink stippling. May need to heavy it up, and repeat black line on top.