| Welcome! 
old MCMR Silver Spring layout The Rockville Model Railroad Society (RMRS) was founded in 2004 in Rockville, MD by the merging of the Gaithersburg Model Railroad Society and the Maryland Central Model Railroad club. We are currently occupying space in the King Farm area of Rockville, in the old King Farm Homestead. We have a diverse group, modeling in all popular scales from G to Z. We are a 501c3 non-profit organization and welcome visitors! | 