Groundwater Springs, Burney Falls, California
Regional groundwater recharge within the volcanic rocks of the Modoc Plateau supplies the stream and springs, which flow over Burney Falls at a rate of approximately 100 million gallons per day. This flow rate remains relatively constant throughout the year, even though this area has a semi-arid climate. Burney Creek drops 120 feet over the lip of an erosionally resistant basalt flow. The basalt flow is underlain by a more porous and permeable tuff, which forms another aquifer and from which secondary springs (center of photograph) discharge to augment Burney Creek. These secondary springs discharge an estimated 1.2 million gallons of water per day. McArthur-Burney Falls State Park is located within the Cascade Range of northeastern California.
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