Mark Hopkins is a part of the Greylock Quad--known for its brick, slate, and cement architectural features. Mark Hopkins rooms boast huge windows that look over the quad and towards the Williamstown Town Hall.

There are 10 washers and 11 dryers throughout the Greylock Quad, which is known for housing mostly juniors and a few seniors and sophomores. Residents will find small singles arranged into suites with common rooms, and a beautiful updated kitchen.

The Greylock Quad, comprised of Bryant, Mark Hopkins, Carter, and Gladden, has its own dining hall, and is close to the '62 Center for Theatre and Dance, and will have an easy-access path that leads students to the new Paresky Student Center in 2007.