The peat was full of twigs of birch, hazel and other trees, which no doubt at one time formed part of the thick forest of Drumsheugh, whose gnarled oaks and sombre pines once cast their dark shadows across the bosom of this ancient lake." The reference to hazel-twigs provides evidence of the existence of hazels in early times close to Calton (v. G. calltuinn: `hazelcopse').