The Morris County Historical Society (MCHS) is a member-supported 501(c)(3) non-profit organization that preserves and promotes the history of Morris County, New Jersey. MCHS is headquartered in Acorn Hall, 1853, which it operates as a historic house museum and is where Morris County-themed exhibits are displayed.

MCHS is open for tours on Tuesdays, Wednesdays and Thursdays, 11:00 am – 4:00 pm, and Sundays, 1:00 pm – 4:00 pm.

Admission is $6 for adults, $5 for seniors, $3 for students, and free for MCHS members and children under 12.