The listing of nearby sites lists only the 25 nearest sites on our database. In the case of Lanyon Quoit, the 25th furthest away is Men Scryfa at 1.6 km distance. Chun Castle and Quoit are further away than this, and so do not appear in the listing.
However, if you look at the embedded Yahoo Map, you will see many more nearby sites plotted on the map, and this does indeed include Chun Castle and Chun quoit, at about 3 km distant. Simply click on their relevant icons to be taken to their sitepage.
Something is not right. This message is just to keep things from messing up down the road