The North Fork Gunnison River (locally known as the North Fork) is a tributary of the Gunnison River 33.5 miles (53.9 km) long in southwestern Colorado in the United States. It drains part of the southwestern flank of the Elk Mountains northeast of Delta. It is formed in the mountains of northwestern Gunnison County by the confluence of Muddy Creek and Anthracite Creek. The confluence is located along State Highway 133 on the south side of McClure Pass. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Natural Place