| Camera Maker | Canon | Camera Model | Canon EOS-1Ds Mark III |
| Aperture | f/5.6 | Exposure Value | 0 EV |
| Exposure Program | Manual | Exposure Time | 1/250 sec |
| Flash | Compulsory Flash | Focal Length | 24 mm |
| ISO | 400 | Metering Mode | Pattern |
| Date/Time | 2010:03:07 14:01:09 | Resolution Unit | Inch |
| X Resolution | 240 dots per ResolutionUnit | Y Resolution | 240 dots per ResolutionUnit |
| Exposure Mode | 1 | Keywords | travel United States of America United States America USA US California CA Nevada County Grass Valley gold-bearing quartz quartz mining mine mining Gold Hill George Knight Gold Hill Mine history historical historic historical marker famous landmark road side highway popular Place of Interest Places of Interest Tourist Attraction Tourist Attractions Tourist Destination Tourist Destinations Travel Destination Travel Destinations tour tourism tourist attraction destination Sign Signs American Day Daytime Historical Sites Vertical Education Historical Site Marker Markers Outdoor Outdoors Outside Road Road Signs Roadside Roadsign information |
| Caption | This tablet commemorates the discovery of gold-bearing quartz and the beginning of quartz mining in California. The discovery was made on Gold Hill by George Knight in October 1850. The occurrence of gold-bearing quartz was undoubtedly noted here and elsewhere about the same time or even earlier, but this discovery created the great excitement that started the development of quartz mining into a great industry. The Gold Hill Mine is credited with a total production of $4,000,000 between 1850 and 1857. |