These authentic petroglyphs were moved to the Lost City (Nevada) museum from a nearby canyon many years ago. At that time, they were painted to better define the images. Nowadays, archaeologists record and photograph the images where they are found, and are moved only if they are in danger of being destroyed. Petroglyphs should never be rubbed, etched, chalked or painted to ‘enhance’ the original image. Petroglyph images are sacred to many Native American Indians, and have special meaning as to the location, placement and surroundings.