Well, Tosca Cliffs is obviously named after it's most prominent feature: the cliffs of a collapsed plateau. It's going to be a tough one to zone, but very scenic.
Elevation and Terrain
This map is all about elevation, though it does give you a grand ramp to get to and from the river. The area is lined with thick hedgerows and forests, which add to the visual splendor of the area.
Along the riverfront to the east and the on top of the plateau on the west, you'll find plenty of places to set up your water towers. The tricky part is going to be the dry spots, which sadly run in some cases directly through the cliffs.
Four small, yet deep pockets of metal ore. In addition, there's a really nice coal deposit.
Those cliffs are monstrous and the waterfront factors in too -- leaving you with precious little room. Concentrate on balancing the top of the plateau with RCI and then leave the riverfront for trade ports and whathaveyou. Oh, and by the way, as if all that wasn't enough, there's ZERO rail access. This is a tough one.