Fishing Grounds of the Gulf of Maine
Clay Ridge - At various points about the edges of Jeffreys Ledge are small detached ridges, which in their season are good fishing grounds.
The present piece of ground lies 26 miles S. by W. from the lightship at Portland, which course and distance bring us to the northern edge. There is a 50 - fathom shoal of small size upon it, but elsewhere soundings average from 65 to 70 fathoms over a bottom of hard clay. The length of the ground is about 4 miles NNE. and SSW., and the breadth about 1 mile.
This furnishes good haddocking in January, February. and March. the latter month showing the best fishing.