The main entrance and parking lot are located at 409 W Riordan Rd., two blocks east of Milton Rd. next to the NAU parking garage.
Programs & Events
Riordan Mansion State Historic Park
Evening Lecture: Northern Arizona Deltiology: History in Postcards
Tuesday, July 28, 2026
5:30-6:30 p.m.
Learn about postcard history and what makes collecting postcards interesting.
Riordan Mansion Special Tour: Historic Milton Walking Tour
August 9, 2026
9-10:30 a.m.
A 90-minute guided walk from Riordan Mansion to explore the Arizona Lumber and Timber Company property and the town site of Milton.
Tea on the Veranda
Sunday, September 13, 2026
1-3 p.m.
Step into 1904 and have tea on the veranda, just as the Riordans did at the beginning of the last century. This event is brought to you by Riordan Action Network and Northern Arizona Celtic Heritage Society.
