The Moss Mansion Museum is a turn-of-the-century home, designed by New York architect Henry Janeway Hardenbergh and built in 1903.  Listed on the National Register of Historic Places, today The Moss is a cultural center that celebrates the influential entrepreneurial accomplishments of Preston Boyd (P.B.) Moss and the ongoing legacy nurtured by wife, Mattie and daughter, Melville. From social events to fundraisers, from daily tours to educational partnerships, every visit is an opportunity to experience some aspect of this legacy. You are invited - come make history with us!

Winter Hours

Self-Guided Tours
Tue – Sun 12 pm to 3 pm

Guided Tours
Fri – Sat 1 pm

Tour By Appointment
Call 406-256-5100

Check the calendar for special events.


Beautifully Maintained History!
The volunteers knew much about the mansion and were able to answer all our questions. Lovely furnishings from long ago. Take note of the wallpaper which was incredible! Loved it! A must see if you like historic homes.

~ 323Julie, Leonardtown MD, TripAdvisor Review, 5/2018

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