Fort William is the second largest settlement in the Highlands of Scotland with around 10,000 inhabitants and the largest town: only the city of Inverness is larger.

Fort William is a major tourist centre, with Glen Coe just to the south, Aonach Mòr to the east and Glenfinnan to the west, on the Road to the Isles. It is a centre for hillwalking and climbing due to its proximity to Ben Nevis and many other Munro mountains. It is also known for its nearby downhill mountain bike track. It is the start/end of both the West Highland Way (Milngavie–Fort William) and the Great Glen Way (a walk/cycle way Fort William–Inverness).

Historically, this area of Lochaber was strongly Clan Cameron country, and there were a number of mainly Cameron settlements in the area (such as Blarmacfoldach). Before the building of the fort, Inverlochy was the main settlement in the area and was also where two battles took place, the first Battle of Inverlochy in 1431 and the second Battle of Inverlochy in 1645.

The town grew in size as a settlement when the fort was constructed to control the population after Oliver Cromwell's invasion during the Wars of the Three Kingdoms, and then to suppress the Jacobite uprisings of the 18th century.

More Info: en.wikipedia.org