Rich,
Chromo sure is a beautiful slice of heaven and I always have wanted to go back and explore the abandoned RG&PS. I have mapped out the railroad on Google Earth that was provided to me by a good friend who have researched it for decades himself and others and have explored a good portion of it. There are a few areas I would like to get to someday to prove out for sure. Also hoping for Lidar to come to the area as well and explore it in detail as well.
We have witnessed valley
and plain and crest,
Canon and pass we've scanned;
We have seen the best
of the glorious West,
by the trail of the Rio Grande
-Author Unknown