This waymark is part of the Ireland passive GPS station network (#D001) and consists of a small brass rivet set on an outcropping bed of rock. The station was originally surrounded by a white triangle which is now indistinguishable from the rock. The station is located approx 0.5km NE of the North end of the runway at Carrickfinn Airport.
More details for this station including a sketch map of the site is availabe from the Passive Data Section of the OSI website.
Direct Link to D001.
*Access to this section of the site requires registration which is free.