106 BATHYMETRICAL SURVEY OF 



LOCHS OF THE BLADENOCH BASIN. 



WITHIN the area drained by the river Bladenoch five lochs were sounded 

 by the Lake Survey, viz. Lochs Maberry, Fyntalloch, Ochiltree, Castle, 

 and Mochrum. The three first-mentioned lochs lie towards the head- 

 waters of the basin on the borders of Ayrshire and Wigtownshire, the 

 boundary-line crossing Loch Maberry, while the two last-mentioned lochs 

 are situated near the eastern shore of Luce bay. The river Bladenoch 

 rises in Loch Maberry, and after a course of some 3 miles is joined by 

 the Beoch Burn, bearing the overflow from Lochs Fyntalloch and Ochil- 

 tree, while the Water of Malzie, bearing the outflow from Castle and 

 Mochrum Lochs, falls into the Bladenoch about 4 miles before entering 

 Wigtown bay, at the town of Wigtown. Except the Loch of Fyntalloch, 

 the lochs are of fair size, three of them exceeding a mile in length, but 

 they are mostly very shallow, only Loch Ochiltree exceeding 15 feet in 

 depth. 



Loch Maberry (see Plate XL.). Loch Maberry lies about 10 miles 

 north-west of Newton Stewart, and trends nearly north and south. It 

 is considerably over a mile in length, with a maximum breadth of nearly 

 half a mile, the mean breadth being a quarter of a mile. The southern 

 portion of the loch for a quarter of a mile is narrow, but the main body 

 is nearly uniform in width. The superficial area is about 175 acres, or 

 over a quarter of a square mile, of which 67 per cent, is covered by less 

 than 10 feet of water. The western and southern portions of the loch 

 are shallow, the deepest part running along the eastern shore, where 

 the maximum depth of 14 feet was recorded. The volume of water is 

 estimated at 56 million cubic feet, and the mean depth at over 7 feet, 

 while the drainage area extends to 1\ square miles. The loch was 

 surveyed on August 17, 1903, when the elevation was found to be 

 388*7 feet above the sea ; when visited by the officers of the Ordnance 

 Survey on July 20, 1893, the elevation was 387-2 feet above sea-level. 

 The temperature of the surface water was 60'0 Fahr., and at a depth 

 of 10 feet 59-0. 



Loch of Fyntalloch (see Plate XL.). The Loch of Fyntalloch stands 

 close to, and at the same level as, Loch Ochiltree, into which it drains 

 by a stream only some 50 yards long. The length from north-west to 



