Old Stone Mill NHS - The Delta Mill Society

Old Stone Mill - photo by Ken W. Watson
The 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, an operating waterwheel, millstones, bolter, grain elevators, and artifacts illustrating the grist milling process through the years. Artifacts include buhr millstones, 48-inch Swain turbines, roller mills and much more.

During the summer we grind heritage wheat into flour using our 200 year old millstones. A small gift shop provides interesting mementos of your visit, including fresh bread (available at 10 am every Saturday) and flour.

We are a self-funded, volunteer based organization. Memberships and donations are our life blood. Please consider joining us and/or making a donation today. Please see our MEMBERSHIP PAGE and our DONATION PAGE

We rely on the personal generosity of our volunteers to be able to maintain and showcase this remarkable example of Ontario history. We ALWAYS need more help. See our VOLUNTEER PAGE.

  • Location: In Delta, Ontario
    (46 King Street / Cty Rd. 42)

    GPS: 44° 36.610′ N (44° 36′ 37" N)
             76° 07.340′ W (76° 07′ 20" W)

  • 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

  • 2018 Events: See Events Page

  • Information: Box 172, Delta, ON, K0E 1G0. Tel: 613-928-2584 Email: info@deltamill.org

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

Location Map

Google Earth View the Old Stone Mill in Google Earth
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The Old Stone Mill National Historic Site is owned and operated by the non-profit organization, The Delta Mill Society. We are a self-funded, volunteer based organization whose operational funding comes from memberships, donations, sales from our gift shop and various fundraising activities. Donations are both needed and very much appreciated. Please see our DONATION PAGE

Rent the Old Town Hall

Our newly renovated Old Town Hall is available for rent. It is perfect for any sort of gathering: weddings, dances, family reunions, conferences, theatre, banquets, art & craft show, or whatever. A commercial kitchen allows for food preparation on site.

For more information see our Old Town Hall Rental Page.

Volunteer Opportunities

The Old Stone Mill is owned and operated by volunteers - we rely on the personal generosity of our volunteers to be able to maintain and showcase this remarkable example of Ontario history. Have a look at our Volunteer Opportunities Page to see if you can help us.

We're Grinding

We installed a set of heritage millstones for our 200th Anniversary in 2010 and we continue to use them today to grind local organically grown heritage wheat into flour. We're continuing work to add new features and need your support. See the Mill Restoration Page.

We grind two to three times a month. Our 2018 milling schedule will be posted on our Events Page when available


The Old Stone Mill and the Old Town Hall are owned and operated by The Delta Mill Society, a self-funded, non-profit organization run by volunteers. Accordingly, we have lots of people to thank for helping us get to where we are today. See our Thanks Page for full details.

All About Our Stone Ground Flour

Visit the All About Our Stone Ground Flour section of this website for interesting information and videos of how the wheat we use is grown, how the grain is stone ground, how the ground flour is sorted, best uses for our flour and FREE BREAD RECIPES.

Visit Our Gift Shop

Our gift shop is located in the Old Stone Mill. Proceeds from sales go to maintenance and operation of the Old Stone Mill.

For a sneak peek at what's available in gift shop - see our Gift Shop Page.

Welcome Cyclists

We welcome cyclists travelling through Delta. If you haven't been our way we have several cycling tour descriptions (starting from the Old Stone Mill) available. See our Tours Page for information.

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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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Website design & maintenance donated by: Ken Watson

Graphics design by Dan Moran and Ken Watson