In this Quick Tip I want to show you, how you can create a procedural muddy landscape in Blender, that can be easily extended as far as you need it. Please feel free to ask questions if there is something you didn't understand.

Textures used:
1st Mud: http://www.textures.com/download/soil...
2nd Mud: http://www.textures.com/search?q=Soil...
Grass: http://www.textures.com/download/gras...

All textures have been altered a little bit to fit the colors like I needed them.

Created with Blender 2.76

See also:
  / blindillusionist  
http://blindillusionist.deviantart.com