Castle Rock - Volcanic Cliff
At a first glance, Castle Rock just looks like a regular rock by the sea. It is actually much more unique than the average rock! Castle Rock gets its name from the home next to it (pictured in the gallery) that resembles a castle. As you can tell by the below picture, Castle Rock is very large. In fact, it used to be a lookout for arriving and departing fishing fleets as well as enemy British and French ships (Parks). It is currently a recreational destination that boasts beautiful views of the Atlantic Ocean.
Castle Rock consists of Lynn Volcanics that are about 309 to 354 million years old (Lockwood). They are the second oldest rocks in the area. They formed during the Mississippian and Pennsylvanian periods (Bedrock Geologic). Tough feldspar crystals, volcanic bombs, and ash fragments are all included in the makeup of Castle Rock (Lockwood). As shown in the image below, the texture of Castle Rock is very jagged. It almost looks as if it was individually cut. These different sized gaps are a result of the cutting action of the waves against the rock, since the rock juts out slightly into the ocean.
Note the jagged surface of the rock and the different sized pieces as compared to the ruler.