Walla Walla Valley Geology

Imagine a large, ancient river, several miles wide, flowing through the western half of the Walla Walla Valley eons ago, fed by melting glaciers and deep snow pack in the Blue Mountains. This river brought nutrients and geological mountain debris from the surrounding area into the flooded Walla Walla Valley. This was a majestic river that defined the geological character of the valley, similar to the amazing cataclysmic events that formed the wine region of the whole Columbia Valley in Washington. Mother Nature must have had a perfect vineyard site in mind as this river flowed for thousands of years, forming soil mixtures of round river stones, gravel, top soil and rich nutrients. Eventually, these "ice age" waters receded, allowing the river to find an alternative route to where it currently flows as the beautiful Walla Walla River.

The path of this ancient river has since been dry, remaining as a geological gift, transforming this old river bed into farmland made of river stones and a unique soil layer that is 50 feet deep. These river stones are still readily visible and coat the valley floor.

The Walla Walla Valley has been blessed with a great climate for producing outstanding wine grapes. This climate, combined with the unique river soils present in Beresan's vineyards, enable us to produce amazing wine with complex character and rich fruit profile.