In addition to the survey data sheet for a mark being hunted, many hunters bring along a digital camera to take close-up and area pictures of the survey mark (a disk, a cross cut in a rock, an old copper bolt, etc.). These photographs, as well as a current description of the mark by the person who finds ("recovers") the location of the mark, can then be uploaded to a website as proof of a find. Surveyors use the term "recovering" as a synonym for "finding" a mark. This does not mean that the found mark should be disturbed in any way. On the contrary—disturbing a survey mark in even a small way often destroys its usefulness to surveyors and others. In the U.S., benchmark hunters often file two different reports on marks they find. One, less formal, is made to the website at Geocaching.com. The other more formal type is made by more experienced and careful hunters to the NGS database itself, and describes the mark's found/not found status, current condition, and updated directions to reach it so that others (particularly surveyors) can more easily re-find the mark.