January 6, 2006 12:37
I've specifically looked at the Georges Bank/Nantucket Shoals chart... it shows a blue area devoid of depth soundings for roughly the area I mentioned. South of the Martha's Vineyards-Nantucket axis, there are depth readings. The whole eastern end of the Vineyard seems blank... again, no depth readings. And no navigation aides... even around Edgartown (where I am assuming there must be some).