At Migvie, in Aberdeenshire, an underground structure (Fig. 253) was discovered in 1862.[109] It was situated in the summit of a gravel hillock, and was in form a long, low, and narrow gallery, entering by an aperture nearly on the level of the original surface, turning first sharply to the left and then to the right, widening and deepening from the entrance inwards and terminating in a squarish end slightly rounded at the corners. The whole length of the gallery measured along the curvature was 41 feet, the width at the entrance 2 feet, and at the widest part about 5 feet. Nine stones covering the portion next the entrance remained in position, the height of the gallery under them increasing from about 2½ feet at the aperture to 4½ feet at the place where the covering ceased. The vertical height of the walls beyond this seemed to have been at least 5 feet. The side-walls were built with rough boulder stones laid pretty regularly. When the interior was cleared out the only objects found were a bronze ring, several rude stone-vessels like roughly-formed cups, large quantities of ashes and charred wood, and corroded fragments of iron implements. ----- Footnote 109: _Proc. Soc. Antiq. Scot._, vol. v. p. 304. ----- [Illustration: Fig. 254.—Ground plan of Earth-house at Buchaam, in Strathdon.] The similarity of these two structures is no less striking than the excessive peculiarity of their distinctive features. These features are—(1) their position under ground; (2) the contracted entrance; (3) the form of the chamber—a long, low, narrow, and curved gallery gradually widening inwards; and (4) the construction of the chamber—with convergent side-walls supporting a heavily-lintelled roof.