By this time, the valley was in much the same geographic state as it exists in today, with one exception the presence of artesian springs that bubbled to the surface in several areas.
The valley is the only source of water for 20 miles.
mnli hypothesis: The valley is the only source of water for 20 miles. premise: By this time, the valley was in much the same geographic state as it exists in today, with one exception the presence of artesian springs that bubbled to the surface in several areas.