Thanks Jon. Where would you connect the extra sidings for industries and what type? I don't think I can connect the yard back to the main because it starts a 2% incline where you marked the red. You were correct on the radius .
46 N scale building kits
3 N gp-38's
12 n trucks, diff. types
22 HO building kits
8 HO trucks
24 HO cars, diff. types
and a lot of other acc.
Looks like I be busy for a while. I'm still working on the HO layout. Need to get done so I can start on the N.