Landscape texturing puzzle

Hi
I would like to create a low polygon canyon landscape to the flight simulator for the air race purpose. The game accepts the maximum 1mile wide, 1mile long and ~5mile tall objects so; the landscape must build from the ‘cube’ objects.

All above is clear how to do but problem occurs with texturing. I would like to have horizontal stripped sandstone look like texture/s for the whole missive. The question is how to matching the textures with neighbor objects:

Possible texturing solutions:

  • one common 512512 or 10241024 size texture for landscape (all objects).
  • Separate 128128 or 256256 size texture for each object.

BTW Is it possible to generate the texture/s inside of the Blender so, it takes account the terrain height?

You could get 2.43, slap procedural texturing on the lanscape objects using blend textures for the horizontal striping and then UV map and use the new render baking features.