Rails-to-trail trails are, in my limited experience (mostly in the DC-MD-northern Va region), boringly flat. I suppose out in the Rockies and Cascades they are

Rails-to-trail trails are, in my limited experience (mostly in the DC-MD-northern Va region), boringly flat. I suppose out in the Rockies and Cascades they are more un-flat, although if it was originally a railroad line it's still likely to be a pretty steady climb or descent. I guess it's fortunate that not everyone agrees with me :).