Alloa is a small burgh in Clackmannanshire, Scotland, 6 miles to the east of Stirling, on the north bank of the River Forth. Its most notable visible landmark is the 14th century Alloa Tower (National Trust for Scotland), the surviving part of the ancestral medieval residence of the Erskine family, the Earls of Mar. Though much altered both externally and internally, the Tower retains its original medieval wooden roof and battlements, as well as some internal features.