I thought I'd show how I'm doing the track ballast on my N scale layout... I'm trying to get a specific look here, that of an Appalachian short line of the 1930's. I didn't want the look of a well maintained Class 1 mainline. I wanted the track to look as low-profile as possible (this is always a challenge in N scale) so I didn't use any sub roadbed...I just glued the track directly onto the foam scenic base. I do the suttounding scenery first, & put masking tape over the track, so when I pull up the tape, there's a small area on either side of the track that's unscenicked.