Images

Lines of debris from tidal action on Folly Island. Folly Island, a preserve owned by the Maine Coast Heritage Trust, is about 7 acres. It is located in Bartlett Narrows, along the western coast of Mount Desert Island.

A panorama of the summit of Cadillac Mountain. At 1,528 feet in elevation, Cadillac Mountain is the highest point in Acadia National Park, and is composed of a unique granite, the Cadillac Mountain granite unit.

A lobster boat puts to sea behind Reed Point, an outcropping on the southwest corner of Mount Desert Island at the mouth of Seal Cove.

A tidal pool on Folly Island. Tidal pools are small pools of water that are left when the tide recedes. Because these pools have water more or less permanently, distinct ecosystems can develop separate from the surrounding beach. Folly Island, a preserve owned by the Maine Coast Heritage Trust, is about 7 acres.

Barnacles on a rock on Folly Island. Barnacles are crustaceans, related to lobsters and crabs, that often live in tidal zones. Once they become adults, they anchor themselves to a hard surface and filter feed. Folly Island, a preserve owned by the Maine Coast Heritage Trust, is about 7 acres.

An image of the summit of Cadillac Mountain. At 1,528 feet in elevation, Cadillac Mountain is the highest point in Acadia National Park, and is composed of a unique granite, the Cadillac Mountain granite unit.

Lobster boats can be seen riding at anchor in Seal Cove, an inlet on the southwest corner of Mount Desert Island in Maine.

Lobster boats can be seen riding at anchor in Seal Cove, an inlet on the southwest corner of Mount Desert Island in Maine.

A panorama from Folly Island. Folly Island, a preserve owned by the Maine Coast Heritage Trust, is about 7 acres. It is located in Bartlett Narrows, along the western coast of Mount Desert Island.

A panorama from Folly Island. Folly Island, a preserve owned by the Maine Coast Heritage Trust, is about 7 acres. It is located in Bartlett Narrows, along the western coast of Mount Desert Island.

Stewart Head, as seen from Folly Island. Folly Island, a preserve owned by the Maine Coast Heritage Trust, is about 7 acres. It is located in Bartlett Narrows, along the western coast of Mount Desert Island. 

Folly Island, a preserve owned by the Maine Coast Heritage Trust, is about 7 acres. It is located in Bartlett Narrows, along the western coast of Mount Desert Island.

A panorama of the summit of Cadillac Mountain. At 1,528 feet in elevation, Cadillac Mountain is the highest point in Acadia National Park, and is composed of a unique granite, the Cadillac Mountain granite unit.

A lobster trap buoy rides in the waves of Seal Cove at Reed Point, along the southwestern coast of Mount Desert Island. Lobster traps rest at the bottom of the sea and are tethered to a buoy that marks their location.

Folly Island, a preserve owned by the Maine Coast Heritage Trust, is about 7 acres. It is located in Bartlett Narrows, along the western coast of Mount Desert Island.

The Saugus River, as it flows downstream of the Saugus Iron Works. In the 1600s, it was much wider and deeper, allowing ships to load processed iron directly onboard for transport.

The Saugus River, as it flows upstream of the Saugus Iron Works. In the 1600s, it was much wider and deeper, allowing ships to load processed iron directly onboard for transport.

A specimen of limonite, used in the iron smelting process. Limonite is a well-known iron ore that has been mined for iron for many thousands of years. At the Saugus Iron Works, the limonite was found in nearby bogs.

The Saugus Iron Works forge, which used a large hammer to compress the iron. Forging strenghened the iron, which, right out of the blast furnace, was brittle. The Saugus River, which powered the forge, can be seen in the background.

A pile of gabbro at the Saugus Iron Works. Gabbro is an igneous mineral that was used as a purifying agent in the iron smelting process at the Saugus Iron Works.

The water wheel for the Saugus Iron Works forge. The forge used a large hammer to compress the iron. Forging strenghened the iron, which, right out of the blast furnace, was brittle.