Loch Anna is a small, upland, freshwater loch approximately 2.4 km (1.5 mi) north of Loch Alsh at Ardelve, in Lochalsh, Scotland. It lies in a northwest to southeast direction, is approximately 0.5 km (0.31 mi) in length, and is at an altitude of 317 m (1,040 ft).[1][2] The loch is irregular in shape, is on average 4 m (13 ft) deep, with a maximum depth of 8.2 m (27 ft). It was surveyed in 1904 by James Murray[3] as part of Sir John Murray's Bathymetrical Survey of Fresh-Water Lochs of Scotland 1897-1909.