The Geology of Calvin Coolidge State Forest

The pamphlet introduces park visitors to regional geology by first explaining fundamental principles—uniformitarianism, superposition, and faunal succession—and the three rock classes: igneous, sedimentary, and metamorphic. With these tools it reconstructs roughly 550 million years of local Earth history, describing past environments, rock formations, and structural features such as dikes and faulting visible along nearby roads and trails. Emphasis falls on reading strata like pages of a history book, interpreting fossils and sedimentary patterns, and relating local outcrops and landscape forms to the processes that shaped the forested park.