Petroglyphs in the Boulder City Dry Fall Area. The exact location is unknown, but the location is possibly in Keyhole Canyon. Petroglyphs are pictogram and logogram images created by removing part of a rock surface by incising, picking, carving, or abrading. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions of the technique to refer to such images. Petroglyphs are found world-wide, and are often associated with prehistoric peoples. The word comes from the Greek words petro-, theme of the word "petra" meaning "stone", and glyphein meaning "to carve", and was originally coined in French as pétroglyphe. The term petroglyph should not be confused with petrograph, which is an image drawn or painted on a rock face. Both types of image belong to the wider and more general category of rock art or parietal art. Petroforms, or patterns and shapes made by many large rocks and boulders over the ground, are also quite different. Inukshuks are also uni

Photograph taken in Boulder City, October 1953. Switchboard of first board in Boulder City, Nevada. One 2 -position unit in foreground was added to original when moved to Boulder City office. First marriage by telephone performed on this unit. Standing is Mrs. Edith R. Gregory, first chief operator of LV. Next to Gregory is Mrs. Ann Gieck, and in foreground is Mrs. Katherine Bush.

From the Dennis McBride Collection on LGBTQ Las Vegas, Nevada (MS-00802) -- Alphabetical research files -- AIDS: Black and White Party file.