USCGS Benchmark at Love Circle. Album 02 Random Photos Image 189/200 Mar 24, 2005 14:49 Original Metadata Camera Model:Canon PowerShot S1 IS Original Time Taken:Mar 24, 2005 14:49 Shutter Speed:1/320 sec Aperture:f/4.5 Exposure Compensation:0 EV Metering Mode:Center Weighted Average Flash Fired:No Flash Focal Length:58 mm In the United States, there are over 1 million of these, marking topographical features. The one at Love Circle was placed in 1933.