These are 2D views as examples, but we’ll do it with 2D and 3D. The first is a 3x3 map with roads and rivers that should be connected, and the second picture is a 3x4 map with roads, rivers and forests. The maps of course would be randomly generated using and rotating several different modules and tile sets all the way from 1x1 to 10x10 and anything in between, not only 1:1 ratio. Was that what you were referring to or did I misunderstand the question?
http://dungeonchannel.com/wp-content/uploads/2014/07/River_feat.jpg
http://dungeonchannel.com/wp-content/uploads/2014/07/Bandit-Hideout_feat.jpg
Thank you!