The Obsidian Saga
The Heartlands is a large area of mostly rocky land. However, small springs exist scattered around, and there are small streams, ponds and even a lake. Most of the water is contaminated, though, and must be purified.
Many plants and animals call the Heartlands their home. Farming is possible, and there are several dozen small farms eking away at the land, creating just enough food to keep civilization afloat.