About the reserve

This quarry is now filled with willow scrub with a stream. The primary interest of the site is its geology. Pegmatites can be seen here, formed by molten magma rising from deep below the surface of the earth, forming pegmatites. These pegmatites are important as they are natural concentrators of rare elements, such as niobium, cerium and beryllium. Leftover magma formed a finer-grained granite and then a speckly grey rock, locally called 'blue elvan', which was quarried for roadstone.