Montrose is a Scottish coastal resort town and former royal burgh in Angus. It is situated 38 miles (61 km) north of Dundee between the mouths of the North and South Esk rivers. It is the northernmost coastal town in Angus and developed at a natural harbour that traded in skins, hides and cured salmon in medieval times.With a population of approximately 12,000, the town functions as a port, but the major employer is GlaxoSmithKline, recently saved from closure. The skyline of Montrose is dominated by the 220 foot steeple, designed by James Gillespie Graham and built between 1832 and 1834.Montrose is a town with a wealth of architecture, and is a centre for international trade. It is an important commercial port for the thriving oil and gas industry. It is known for its wide thoroughfare and high street whichleads to picturesque closes containing secluded gardens. The town has a view of a two square mile tidal lagoon, Montrose Basin, which is considered a nature reserve of international importance. It is the largest inland salt water basin in the UK, and an important habitat for the mute swan. Just outside Montrose is the 18th Century House of Dun, designed by the Scottish architect William Adam and built in 1730 for David Erskine, 13th Laird of Dun.