Melanoma is a type of cancer that begins in melanocytes (cells that make the pigment melanin). Below are photos of melanoma that formed on the skin. Melanoma can also start in the eye, the intestines, or other areas of the body with pigmented tissues. Asymmetry: The shape of one half does not match the other half. 2  Border that is irregular: The edges are often ragged, notched, or blurred in outline. 3  The pigment may spread into the surrounding skin. 4  Color that is uneven: Shades of black, brown, and tan may be present.
Grand Canyon. This article is about the canyon in the southwestern United States. For other Grand Canyons, see Grand Canyon (disambiguation). The Grand Canyon (Hopi: Ongtupqa; Yavapai: Wi:kaÊ¼i:la, Navajo: TsÃ©kooh Hatsoh, Spanish: Gran CaÃ±Ã³n) is a steep-sided canyon carved by the Colorado River in the U.S. state of Arizona in North America.
Grand Canyon National Park Trip Planning Guide. The Grand Canyon is one of the seven natural wonders of the world, drawing nearly 5 million visitors every year. Grand Canyon National Park, which is located entirely in Arizona, spans 277 miles of the Colorado River and adjacent uplands. If you are considering visiting Grand Canyon National Park for the first time, there are many things you might not â but should â know.