This beach presents the appearance of a terrace, extending along the north side of the Carse of Stirling, from the foot of Abbey Craig westward to Lecropt Church, and beyond it. Its length is about two miles; its breadth, at Lecropt Church, is about 200 feet, at Airthrey Mineral Well 900 feet, and at Airthrey Castle near half a mile. Its upper surface is nearly a dead level in both directions, except where breaches have been made in it, by streams or other agents. The elevation of this surface above the Carse in about 85 feet, and above the Forth at Stirling probably 110 feet. Rock is seen under the terrace at the village of Causeyhead, in the bed of the River Allan, at the Bridge, and at the bottom of the acclivity under Lecropt Church.