With thanks to the handy little information board at the top of the lookout:
Penobscot Bay, bearing the same name as the Native American tribe indigenous to this region, is Maine’s largest bay. At approximately 30 miles long and 30 miles wide, Penobscot Bay contains hundreds of islands. The bay originates at the mouth of the Penobscot River and once served as the gateway to Bangor, the 19th-century lumber capital of the world.
Widely considered one of the most picturesque landscapes along the Atlantic seaboard, the view before you has inspired countless writings and works of art, including Edna St Vincent Millay’s poem “Renascence”.
All I could see from where I stood
Was three long mountains and a wood;
I turned and looked the other way,
And saw three islands in a bay…”