(Green Cove Springs #1) in Green Cove Springs, Clay County, FL. FL16 (Ferris St. - becomes Idlewild Av.) W. 1.0 miles from jct with US17, N. on Highland Av. 1 block to the tower on the W. side of the road. (N29 59.285 W81 41.726) Photos by Jack & June Schmidt 6-26-10.