This 13.5 mi standard-gauge branch line railway ran to a civil parish situated about how far above sea level?
Alston line:  Starting at its junction with the Newcastle and Carlisle Railway line at Haltwhistle, the line ran to the town of Alston. Alston, Cumbria: Alston is a small town in Cumbria, England, within the civil parish of Alston Moor on the River South Tyne. Alston, Cumbria:  It shares the title of the 'highest market town in England', at about 1,000 ft above sea level, with Buxton, Derbyshire.
i don't know