the Spokane aquifer is provided by the first hand dug well constructed in 1907. This view (click to enlarge) looks nearly vertically down into the 28 ft diameter, 40 ft deep well, the bottom and lower part of which is open directly to gravel and sand. These unconsolidated outburst flood-deposited sediments have extraordinarily high porosity and permeability and are host to the prolific aquifer that today serves nearly 500,000 people in the greater Spokane area.
Here's a previous
related post about the Spokane Valley - Rathdrum Prairie aquifer.
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