Nhill (Mars)

Named after the Town in Victoria, Australia.

Nhill is a Martian impact crater, 22 kilometers in diameter. According to a surface age map of Mars based on US Geological Survey data, the area around Nhill is from the Noachian epoch, which places the area's age at 3.8 to 3.5 billion years ago. The crater is shallow, and is only about 300 meters deep. (wikipedia entry)

A crater is a circular depression likely created by an impact event. On Mars large craters are named after deceased scientists, writers and others who have contributed to the lore of Mars. Small creaters (less than 60km) are named after small towns and villages.