(Swallows in the Window, TN-90-11) in Johnson City, Washington County, TN. Silverdale Dr. W. 0.1 miles from jct with Oakdale Av. to the quilt on the S. side of the road at 2220. Knob View Farm. (N36 21.130 W82 21.735) Photos by Jack & June Schmidt 6-15-18.