-------- Original Message -------- Subject: octagonal Date: Sat, 12 Jul 2003 17:38:46 +1000 From: Brendan Whyte <[log in to unmask]> ------------------ Can anyone tell me what this feature is, on 24k topo Jacksonville Heights (Florida)? 81d50' W, 30d10'N It is not labelled on the USGS maps. A radio station or military site perhaps? map: http://www.topozone.com/map.asp?z=17&n=3338739&e=421027&s=25&size=m aerial photo: http://terraserver-usa.com/image.aspx?t=1&s=12&x=526&y=4173&z=17&w=2 Thanks Dr Brendan Whyte Geography Department University of Melbourne Vic 3010 AUSTRALIA