Old Stone Mill NHS - The Delta Mill Society
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Old Stone Mill National Historic Site of CanadaThe Old Stone Mill in Delta Ontario is a National Historic Site showcasing milling technology and 1800s industrial heritage. The mill was built in 1810 and is one of the finest examples of early industrial architecture in the region.

A self-guided tour of the mill features interpretive displays, a full size breast wheel waterwheel, and artifacts illustrating the grist milling process through the years. Artifacts include buhr millstones, 48-inch Swain turbines, roller mills and much more.

In the Museum of Industrial Technology, the former Old Town Hall (just around the corner from the mill), the exhibits highlight some of the early industries of the region including early agricultural equipment. Small gift shops are located at both sites.




  • Location: In Delta (Cty Rd. 42), Ontario

  • Open: Daily from Victoria Day Weekend (Saturday) through to Labour Day weekend (Monday) from 10:00 a.m. – 5:00 p.m. Thereafter by appointment only.

  • Admission: Voluntary donation

  • 2007 Events: See Events Page

  • Information: Box 172, Delta, ON, K0E 1G0. Tel: 613-928-2584 (office) or call the museum during operating hours at: 613-928-2658. Email: info@deltamill.org

Please pay us a visit soon - we know that you will enjoy it!

Location Map


Operational Restoration Project
The Old Stone Mill is the oldest surviving automatic stone grist mill in Ontario. A major fundraising effort is now underway to restore the mill to full operational condition in time for its 200th anniversary in 2010. Read all about it on the Operational Restoration Project Page.


Structural Restoration Finished !
In 2004, after five years and the expenditure of one million dollars, the structural restoration of the Delta Mill was completed, realizing a goal the Delta Mill Society set for itself in 1987. The restoration of the mill assures that this significant Ontario heritage site will be around for many future generations to enjoy. Have a look at some photos of the grand (re)opening ceremony that was held on May 15, 2004. See the Grand (re)Opening Page.

Parks Canada

The Old Stone Mill National Historic Site has been designated by the Government of Canada as a place of national historic significance. This place is part of the Family of National Historic Sites, one of more than 800 places across Canada which help define the important aspects of Canada's diverse but common heritage and identity. Further information on the National Historic Sites Program can be found at the Parks Canada website
           Delta Mill

The Delta Mill Society   The Delta Mill Society
Box 172, Delta, Ontario K0E 1G0
Tel: 613-928-2584 (office)
Email: info@deltamill.org
The Delta Mill Society

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