http://www.trailsandgreenways.org/re...ne/default.asp
has the documents you want in PDFs (adobe acrobate)

http://www.railtrails.org/
http://www.trailsfromrails.com/
http://www.traillink.com/default.asp
http://www.trailnet.org/
http://www.trailsandgreenways.org/

http://www.trailsfromrails.com/katy_trail.htm
http://www.bikekatytrail.com/
http://mostateparks.com/katytrail/index.html
http://www.katycentral.com/communityInfo/default.asp