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Livermore Valley
---- Oct 2 - 6/90 ----------

The Livermore valley is the largest valley of the Coast Range north of Mt. Hamilton and unlike most of the valleys of this range is well watered, agriculture requiring no irrigation the rainfall about 12 inches. The entire water shed is discharged through Niles Cañon into San Francisco Bay by the socalled Alameda Creeks. Within the valley there are a large number of creeks each draining a smaller valley or cañon of its own.
The south easternmost is the Arroyo del Viaje which discharges by a permanent stream into a small rounded valley from which there is a small narrow passage into the Livermore valley proper. Here the