Ancient petroglyph carvings can be found at Sproat Lake. Petroglyph panels are found throughout Glen Canyon. A petroglyph that represents a landform or the surrounding terrain is known as a geocontourglyph. It may also have been recorded by the Anasazi as a petroglyph. Suburban development currently affects the Petroglyph National Monument site. These two parcels adjoin the Petroglyph Point Unit of the monument. Confirmation that the markings are an ancient petroglyph will require more evidence. Hawaiians had no written language prior to Western contact, except for petroglyph symbols. Other examples of "Cernunnos" images include a petroglyph in Val Camonica in Cisalpine Gaul. Haugen farm is home to Vestfold County's largest petroglyph site. The location of a dagger of light on the petroglyph varies throughout the year. The earliest known petroglyph of the figure dates to about 1000 AD. McLaughlin (2004) illustrates the most prominent correspondences with the petroglyph corpus of Lee (1992). Mytheon was a free to play massive multiplayer online video game developed by Petroglyph Games. She was a student at Petroglyph Elementary School in Albuquerque.