Fort Donelson entrance Album Random photos Image 32/75 Jul 05, 2010 18:26 Original Metadata Camera Model:Canon PowerShot S5 IS Original Time Taken:Jul 05, 2010 18:26 Shutter Speed:1/100 sec Aperture:f/3.5 ISO Sensitivity:100 Exposure Compensation:0 EV Metering Mode:Pattern Flash Fired:No Flash Focal Length:25.2 mm Made of stone and topped by cannonballs, this is at the main entrance to Fort Donelson National Military Park.