The Harvard Map Collection is on the first floor of the Pusey Library. It's easiest to enter into Pusey directly through the subterranean door across from the east side of Widener. We are then around the corner from Harvard University Archives.
The Harvard Map Collection is on the first floor of Pusey Library (underground). To find us, go to the front of Widener Library. Look to your left and you will see a set of stairs going down. This is the main Pusey entrance. Once you are in, the Map Collection is down the hall and around the corner. The reading room entrance is on the left past the lockers and display cases.