Coordinates: 55°36′36″N 4°16′51″W / 55.610035°N 4.280882°W / 55.610035; -4.280882
Darvel or Dervel (Scots: Dairvel,Scottish Gaelic: Darbhail) is a small town in East Ayrshire, Scotland. It is at the eastern end of the Irvine Valley and is sometimes referred to as "The Lang Toon" (English: the Long Town).
The town's Latin motto, Non sibi sed cunctis, means "Not for ourselves, but for others".
Darvel is situated on the A71 road that runs from Irvine on the west coast to Edinburgh on the east. The town is nine miles east of Kilmarnock and is the most easterly of the Valley Towns, the others being Galston and Newmilns.
The town was also once linked with Stonehouse (via Strathaven) by the Caledonian Railway. However, the line was closed by the LMS before the Second World War. The former Glasgow and South Western Railway branch line to Kilmarnock survived for much longer and was closed in 1964 as part of the Beeching Axe. Much of the route of both the old railway lines is still in existence, although the rails have long since gone and many road bridges have been removed. There was a large viaduct to the east of the town, in the lea of Loudoun Hill, which carried the railway line over the valley. This was however, demolished in 1986, and only the piers remain.
This is a list of craters on Mars. There are hundreds of thousands of impact craters on Mars, but only some of them have names. This list here only contains named Martian craters starting with the letter A – G (see also lists for H – N and O – Z).
Large Martian craters (greater than 60 km in diameter) are named after famous scientists and science fiction authors; smaller ones (less than 60 km in diameter) get their names from towns on Earth. Craters cannot be named for living people, and small crater names are not intended to be commemorative - that is, a small crater isn't actually named after a specific town on Earth, but rather its name comes at random from a pool of terrestrial place names, with some exceptions made for craters near landing sites. Latitude and longitude are given as planetographic coordinates with west longitude.