Haycock is a Lake District fell of 797 m in Cumberland. Its key col leads to Pillar, not to its nearest higher summit, Great Scoat Fell.
It shares its height of 797 m with Cairnsmore of Carsphairn. Its nearest higher summit, Great Scoat Fell (802 m, 1.1 km north-east), is a listed top not profiled here. Its drop of 94 m makes it a Hewitt but is short of the 150 m a Marilyn needs. The key col is close by, only 0.4 km to the north-east at 703 m. The database describes the top as a large cairn on rock on s side of wall.