Egg Rock is an outcrop of Silurian Straw Hollow Diorite at the confluence of the Assabet and Sudbury rivers, where they form the Concord River in Concord, Massachusetts. The outcrop is located on a ro
View of Egg Rock around 1900, from "The History of Concord, Massachusetts", 1904
Photo of Egg Rock inscription, about 1900
As in Thoreau's time, ice still "slants up" to Egg Rock in the winter of 2009–2010. High-water marks darken the lower half of the inscription.
Canoeists paddling up the Sudbury River, seen from atop Egg Rock. The Concord River and Lowell Road bridge are in the background.
Concord is a town in Middlesex County, Massachusetts, United States. In the 2020 census, the town population was 18,491. It contains the census-designated place of West Concord. The United States Cens
Egg Rock
…Egg Rock is an outcrop of Silurian Straw Hollow Diorite at the confluence of the Assabet and Sudbury rivers, where they form the Concord River in Concord, Massachusetts. The outcrop is located on a roughly oval intermittent island of about 100 by 50 meters. Egg Rock is usually accessible using foot trails over land…
Concord's Main Street in 2012
Aerial view, looking northwest, December 1935
The Old Manse, home to Ralph Waldo Emerson and later Nathaniel Hawthorne