| Camera Maker | Canon | Camera Model | Canon EOS-1Ds Mark III |
| Aperture | f/5 | Exposure Value | 0 EV |
| Exposure Program | Manual | Exposure Time | 1/500 sec |
| Flash | No Flash | Focal Length | 59 mm |
| ISO | 100 | Metering Mode | Pattern |
| Date/Time | 2011:10:17 16:03:22 | Resolution Unit | Inch |
| X Resolution | 240 dots per ResolutionUnit | Y Resolution | 240 dots per ResolutionUnit |
| Compression | Jpeg Compression | Exposure Mode | 1 |
| Subject Distance | 2.25 | Keywords | Delaware Canal historic marker Pennsylvania PA attraction destination display education information landmark marker sign tourist aqueduct attractive Bristol Bucks County Cooks Creek Delaware River Easton educating historical marker Historical Site Historical Sites info lift locks Place of Interest Places of Interest road side Road sign Roadside signage tour tourism tourist attraction Tourist Destination Tourist Destinations travel Travel Destination Travel Destinations United States appealing no people sightseeing text United States of America attract history nobody sightsee word daytime destinations displays historic markers landmarks markers signs Jason O. Watson / historical-markers.org tourists appeal color image educate historic outdoor vertical aqueducts day historical markers road sides tourist attractions tours colour image historical outside day time US day-time USA words color images daylight outdoors U.S. verticals colour images natural light outsides U.S.A. historic site sign with text |
| Caption | DELAWARE CANAL Here is Lock No.21 in a series of 23 lift locks, numbered from Bristol to Easton. The aqueduct over Cooks Creek is one of nine which carried water and shipping across branches of the Delaware River. Pennsylvania Historical and Museum Commission, 1948 |