Newmains is a village and former mining community on the eastern edge of Wishaw, North Lanarkshire, Scotland, 18 miles (29 km) south-east of Glasgow.

[2] The Coltness Iron Works was established in 1837 by industrialist, Henry Houldsworth who, foreseeing the gradual demise of the once booming cotton industry, decided to diversify into minerals.

The estate was soon purchased from the trustees of Sir James Steuart Denham enabling the fortuitous establishment of an iron works on a proven mineral field.

[4] Transport problems were solved in 1841 with a rail link to Coatbridge and the business prospered, expanding into Ayrshire with the opening of the Dalmellington Iron Works and sinking several new coal-pits in the area.

The Coltness branch[6] from the West Coast Main Line at Garriongill terminates near the village, but is used only for the transport of coal from the nearby open cast mining facility.