HOLLAND, MI (WHTC) - Holland CVB officials are crowing over landing a temporary 20-foot snowboard and ski slope that will be off of 8th Street across from the Knickerbocker Theatre. A Saturday, February 22nd“Downtown Rail Jam” is planned to kick off the seasonal attraction from AGA Nation, which chose the home of Hope College over the Grand Valley State campus in Allendale to place its artificial slope. The Rail Jam is free for all participants.