I always wanted a Trainz route of the Niagara area. There were some made but they aren't accurate. There is a huge blank DEM on the DLS of the Niagara area but the Ontario, Canada side is blank, no TIGER lines. I too struggle with gradients especially on those old HOG blank routes made by fishlipsatwork, smooz, etc. Sometimes there's ugly gaps like V or raised ridges and raised points like /\ in the terrain. The uneven terrain where the light blue track lines are really frustrates me. Especially with mountainous and hilly terrain. Without track charts of a particular line I have to guess the gradients. Any tips on working with HOG maps to get better results?