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Staff Types: Full-Time Staff

Oli Oliveira

Elizabeth Antczak

Amy Boonstra

Robert Flewelling

Michelle Nguyen

Igor Naumov

Jason Barrett

Justine Tenzer

Chris Thorne

Christian Sladic

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Archaeological and Cultural Heritage Services, Inc.
Conserving and sharing Ontario's cultural legacy.
🏘️🔬🕵️👷🏾‍♀️🌲🚣👣
Send us your heritage questions!

Ontario’s heritage also lies beneath our beautiful Ontario’s heritage also lies beneath our beautiful waterways!

Marine Archaeology in Ontario is still an emerging field, scroll through to see the techniques and tools we use to uncover heritage in fresh water conditions.

When people think of underwater exploration, they may often picture scuba diving. In Marine Archaeology however, we can gather most of the data we need without plunging beneath the surface.
Instead, we collect archaeological core samples of the sediment, and we use survey tools such as side scan sonar, magnetometry, sub-bottom profiles, and underwater drones to build a picture of the body of water we are exploring.

Unlike land archaeology, our work in marine archaeology is not governed by legislated Standards and Guidelines. Our methodology is project-specific and determined by our marine archaeologists in consultation with the Ministry of Citizenship and Multiculturalism. Fortunately, our province has a long history of underwater archaeology, which provides us with a wealth of experience to guide each project.

With changing water levels, sites that were on land are now underwater! Here we are doing some core sampling to look for sites that would once have been along the shoreline.

Conversely, some underwater sites are now on land! We found a schooner buried under the former wharf one kilometre inland from the current Toronto shoreline.

These discoveries highlight that Marine archaeology remains an emerging field in Ontario, and advancing technologies are continually improving our understanding of how past peoples interacted with waterways.
Are you an experienced and passionate archaeologis Are you an experienced and passionate archaeologist? 
 
We are hiring for two office positions- a Project Manager and a Technical Writer, and we would love to hear from you!
 
Visit the link in our bio to read the full job postings and learn more.
 
If you’re excited about these opportunities and meet most, but not all, of the qualifications, we still encourage you to apply!
#ontariojobs #ontarioarchaeology #technicalwriter #projectmanager
Name a sport…we’ve got a team worth cheering for! Name a sport…we’ve got a team worth cheering for! #canadaday
🇨🇦
Do you have a favourite Canadian sports memory?
We are thrilled to congratulate Dr. Ron Williamson We are thrilled to congratulate Dr. Ron Williamson on receiving an Honorary Doctor of Letters from the University of Waterloo — the highest honour conferred by the University.

This prestigious recognition celebrates a lifetime of achievement and impact. During the ceremony, Dr. Chris Watts reflected on Ron's remarkable legacy, noting that through the founding of ASI, he helped transform "a fledgling field of Cultural Resource Management into a paragon of heritage preservation."

Making the day even more special was the presence at the ceremony of Ron's wife and partner, Debbie Steiss, and Rob MacDonald, Ron's mentee and successor as President of ASI from 2016-2026.

We couldn't be prouder to see Ron's contributions to archaeology, heritage preservation, and mentorship recognized in this way.

Scroll through for highlights from Ron's Convocation address and some favourite images from his long and illustrious career.

Congratulations, Dr. Williamson!

@uofwaterloo
For National Indigenous Peoples Day, we are celebr For National Indigenous Peoples Day, we are celebrating Tim Johnson, a respected educator, curator, and storyteller who has spent more than 45 years sharing Indigenous history, art, and culture across Turtle Island.
Deeply connected to his family’s heritage at Six Nations of the Grand River, Tim has held leadership and consultant roles with the Smithsonian Institution’s National Museum of the American Indian, the Woodland Cultural Centre, Lord Cultural Resources, and the Niagara Academy for Indigenous Relations, advancing Indigenous education, heritage, and reconciliation.
We have been fortunate to collaborate with Tim on several meaningful projects, including the Landscape of Nations, a memorial to the sacrifices of the Six Nations and Native Allies during the War of 1812, which also inspired Landscape of Nations: Beyond the Mist, a book documenting 13,000 years of Indigenous history in Niagara. 
We also worked with Tim on the award-winning exhibitions Misko-Aki: Confluence of Cultures at the Muskoka Museum and Empathic Traditions: Niagara’s Indigenous Legacy- a digital exhibit in collaboration with the Niagara Falls History Museum.
Through his work, Tim has helped bring Indigenous stories, perspectives, and histories to broader audiences, leaving a lasting impact on communities across the region and beyond.
This June, Brock University recognized his extraordinary contributions with an Honorary Doctorate of Laws, and Tim delivered the University’s Spring Convocation address.
 
Photo Credit: (1,2) Brock University; (3) Alex Heidbuechel; (4) Mark Zelinkski
#nationalindigenouspeoplesday #timjohnson #brockuniversity
We are delighted to share a few of the local event We are delighted to share a few of the local events dedicated to National Indigenous History Month and the upcoming National Indigenous Peoples Day on June 21! 
Check out this post and the links in our bio to find opportunities to honour First Nations, Inuit and Métis communities across Canada. There are a many festivals, performances, gatherings and learning opportunities to connect with stories, traditions, and cultures of Indigenous peoples across Turtle Island. 
#nationalindigenouspeoplesday #nationalindigenoushistorymonth #ontario
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Recent Updates

Humans in the Americas during and before Last Glacial Maximum: personal and paradigmatic transitions from a decade of successful research in Mexico to a complicated panorama in Ontario

June 3, 2026

Our 10th Annual Field Photo Contest

November 17, 2025

ASI at the 2025 Ontario Archaeological Society Symposium

October 15, 2025

Tracing the Introduction of Rats Across 19th-Century Lake Ontario Settlements Using Archival Newspapers

October 15, 2025

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