The Arrochar Intrusive Complex

Abstract

The present paper deals with a number of intrusions lying within a north-easterly oriented belt of country, 4 miles wide and 12 miles long, running from a point 1½ miles west-south-west of the Brack, through the Arrochar mountains and across the head of Loch Lomond, to the upper reaches of Glen Gyle, 3 miles east of Ardlui (Text-fig. 1). Only one of these attains any considerable size. It lies north-west of the head of Loch Long and may be called the main Arrochar intrusion.