Hey Larry,
I suspect there are likely as many "Goose Rocks" in Maine, as there are "Seal Bays"... (grin)
The ledge in question is to the south of Islesboro, just east of Camden... Interestingly, the "East Goose Rock" is actually to the West of the Goose Rock that you found...
ARCHANGEL was trying to thread that needle south of Lasell Island, at the bottom 1/4 of this chart...
best regards,
Jon