22" x 17", 2 sides, "From its broad network of tributary creeks in the Coast Range to its narrow outlet in the marshlands bordering San Francisco Bay, . . . With our help it will continue to be a natural local treasure . . .;
22" x 17", 2 sides, "From its broad network of tributary creeks in the Coast Range to its narrow outlet in the marshlands bordering San Francisco Bay, . . . With our help it will continue to be a natural local treasure . . .;