The drainage of the parish runs partly to the Forth and partly to the
Endrick and on to the Clyde, and the watershed runs from the Bog of Ballat,
221 feet above the sea, over the Drymen Muir to Benvraick, which is between
the parishes of Drymen and Buchanan, and is 1750 feet above the sea. The
other highest hills in the parish are Meikle Caldon, 602 feet, and Cameron
Muir, 530 feet above sea level, both in the southern part of the parish; and
Gualann, 15 14 feet, on the borders of Buchanan parish; Maol an Tarairne, 720
feet, Elrig, 683 feet, Maol Ruadh, 624 feet, and Drum of Clasmore, S77 feet>
above the sea, all in the north-western portion of the parish.
The road from Stirling to Glasgow enters the parish at Cashlie Bridge over
the Cashlie Burn, and a mile further on passes into Balfron parish which it
traverses for three-quarters of a mile, when it again comes into Drymen, and
passes over the Bog of Ballat, famous for its meadow hay.
To the north of the road is Ballochneck (at one time the property of Mr.
Lennie, the grammarian, and latterly of the late Sir William M'Onie), and
Auchentroig, now the property of William Smith, Esq., by whom it was bought
from the heirs of the late William Alexander M'Lachlan, Esq., of Auchentroig,
whose family had possessed it for 600 years. The house is situated on the banks
of the pretty little glen of Arnfaichloch, and has some fine old trees round it.
