This is a very interesting geological formation, clearly showing fossilized sand dunes in alternating bands of colour.
There are two sites: Fossil dune site 1 (nearest Martin Head) Lat 45.492870°N, Long 65.203897°W; fossil dune site 2 Lat 45.493345°N, Long 65.208578°W. Both are nearer to Martin Head than to Telegraph Brook. These outcrops of Triassic sedimentary rocks from the Fundy Group are similar to those found in St. Martins and Red Head and are over 200 million years of age.
Image by Ben Phillips