http://www.nmra.org/    National Model Railroad Association

http://www.cnynmra.org/    Central New York Division of The NMRA

http://www.sierrascalemodels.com/    Sierra Scale Models carries real wood sheets for making roof shingles and other logging railroad details, including logcar kits, turf, fences, stumps, power lines, scale glass, and more.

http://www.riograndemodels.com/index.htm    Rio Grande Models maker of finely detailed metal rolling stock, structures and
logging equipment for HO -HOn3 Sn3, O and On3 scales