From Capture to Care: Digital Heritage in Western Canada

Session Hosting Format: 
in-person session
Organizer(s): 
  • Peter Dawson, Christina Robinson, Madisen Hvidberg, Mavis Chan
Contact Email: 
Session Description (300 word max): 

Across Western Canada, many culturally significant places—historic buildings, Indigenous heritage landscapes, industrial sites, and community-valued structures—are increasingly threatened by wildfire, flooding, climate instability, development pressures, and long-term neglect. Although many of these places remain undocumented or undesignated, they hold deep meaning for the communities and Nations connected to them. The Alberta Digital Heritage Archive (ADHA) was established in 2017 with support from the Andrew W. Mellon Foundation to develop a scalable, community-informed model for digital preservation across the region. Using terrestrial LiDAR, aerial photogrammetry, and other reality-capture tools, the ADHA curates high-resolution 3D datasets that support reconstruction, monitoring, and teaching applications. The ADHA is part of a rapidly expanding ecosystem of digital heritage work occurring throughout Western Canada.

This session invites contributions from British Columbia, Yukon, NWT and the Prairie Provinces that explore how digital technologies are being used across Western Canada to document, protect, and revitalize heritage resources. We welcome papers on LiDAR, photogrammetry, 3D modelling, remote sensing, VR/AR, database design, and related methods, with attention to community partnerships, Indigenous data governance (FAIR/CARE), methodological innovation, and the role of digital documentation in addressing growing heritage vulnerability.

Présentations
Detecting Change in the Far North: UAV Photogrammetry and Arctic Heritage at Risk
Format de présentation : In-Person
Auteur-e(s) :
  • Katelyn O'Keefe - AECOM Canada

Arctic heritage sites are increasingly threatened by climate change and traditional approaches to documentation and monitoring are often time-consuming and resource intensive. UAV (drone) photogrammetry has emerged as an effective tool for visualizing heritage resources and when combined with change detection analysis, can be used to detect and document change to threatened heritage sites. Results of such analyses are informative for developing both short-term and long-term heritage monitoring strategies.

This presentation focuses on the analysis of multi-year UAV imagery collected at Simpson Point (NjVi-3), an archaeological site with approximately 800 years of continuous occupation by the Inuvialuit, their ancestors, and Euro-North Americans. Simpson Point is located on Qikiqtaruk (Herschel Island), off the Yukon North Slope. The presentation will highlight the results of change detection analyses that have revealed evidence of landscape and site change, including impacts from climate change induced flooding and coastal erosion, as well as effects associated with tourism and heritage restoration efforts. Ongoing monitoring initiatives at Simpson Point and within Herschel Island–Qikiqtaruk Territorial Park are also discussed.

Digital Storytelling and the Commemoration of Indian Residential School Landscapes: A Reflection on Data, Accessibility, and Proprietary Software
Format de présentation : In-Person
Auteur-e(s) :
  • Zoe Cascadden-Jassal - University of Calgary
  • Peter Dawson - University of Calgary

The Digitally Preserving Former Indian Residential Schools in Alberta project has existed since 2018 with the goal of digitally commemorating the three remaining residential school structures in Alberta, including the commemoration of schoolgrounds, which are imbued with experience and memory. This paper examines the development of methods for the digital preservation of landscapes and the work completed thus far in commemorating the schoolgrounds of Old Sun Residential School located on Siksika Nation through digital storytelling. A story map has been created using ESRI ArcGIS StoryMap, a proprietary program that allows for the creation of narrative maps that integrate multiple media sources. The story map combines the data collected through the Digitally Preserving Former Indian Residential Schools in Alberta project, archival aerial images, and maps to tell the history of the schoolgrounds. StoryMap provides an excellent platform for digital storytelling, however the use of such a program requires considerable evaluation to ensure that responsible data principles, such as CARE, are followed. This paper will reflect on the complexities faced by community-based projects in data responsibility through the Old Sun schoolgrounds storymap example and contemplates the path forward to ensure data sovereignty and accessibility.

Evaluating iPhone-Based 3D Scanning Applications for Heritage Documentation
Format de présentation : In-Person
Auteur-e(s) :
  • Abdelrahman Abdelghany - Dept. of Geomatics Engineering, University of Calgary, Calgary, AB, Canada
  • Derek Lichti - Dept. of Geomatics Engineering, University of Calgary, Calgary, AB, Canada
  • Peter Dawson - Dept. of Anthropology and Archaeology, University of Calgary, Calgary, AB, Canada
  • Shabnam Jabari - Dept. of Geodesy and Geomatics Engineering, University of New Brunswick, Fredericton, NB, Canada

Historic wardens’ cabins and other wooden structures located in Canada’s national parks are increasingly vulnerable to deterioration, environmental change, and wildfire, making accurate digital documentation essential for long-term preservation. While terrestrial laser scanners (TLS) provide highly detailed data, their cost and operational complexity limit their use for routine documentation in remote environments. Recent advances in LiDAR-equipped smartphones offer a low-cost alternative, but their accuracy and reliability for heritage documentation remain uncertain. This study evaluates the performance of several iPhone-based 3D scanning applications for documenting historic log cabins in Yoho National Park, Canada. Field datasets from two federally designated heritage buildings were compared with high-resolution reference scans acquired using a GeoSLAM ZEB Horizon mobile LiDAR system. An indoor dataset was also captured in a metrology laboratory to evaluate app performance under controlled conditions. Results indicate that smartphone LiDAR can capture sufficient structural detail for heritage documentation, although the results from some applications exhibit geometric distortions. A newly developed prototype application demonstrates improved structural fidelity and reduced distortion, suggesting that smartphone LiDAR has strong potential as a low-cost tool for routine heritage documentation and digital twin creation.

From Emergency Mitigation to Digital Repatriation: 3D Visualization of Displaced Pictographs at Nak’al Bun (Stuart Lake)
Format de présentation : In-Person
Auteur-e(s) :
  • Anthony Fegan - Ecofor Consulting

In response to the natural degradation of a significant pictograph rock art site on Nak’al Bun in Fort St. James, BC, an emergency salvage permit was obtained to recover fallen pictograph segments and assess the cliff face. This presentation details the recovery and the subsequent "digital repatriation" of the site through terrestrial and drone-based photogrammetry. High-resolution 3D models were generated for both the in-situ panels and the recovered fragments, creating a permanent digital record of the site’s precarious state.

While the physical segments were transitioned to the care of Nak’azdli Whut’en at a local school, the project sought to bridge the gap between CRM mitigation and community-led heritage education. The 3D assets were integrated into an "Interactive Digital Environment," to allow students and community members to virtually explore the site, interact with the fallen segments, and view the site in its original spatial context. By prioritizing the return of the three-dimensional data to Nak’azdli Whut’en, this project demonstrates how emergency CRM salvage can be elevated into a long-term, accessible resource for Indigenous youth and local heritage stewardship.

Ghosts of the Grain Trade: Digitally Preserving Prairie Elevators
Format de présentation : In-Person
Auteur-e(s) :
  • Madisen Hvidberg - University of Calgary
  • Zoe Cascadden-Jassal - University of Calgary
  • Peter Dawson - University of Calgary

Wooden grain elevators once dominated the skylines of prairie towns and were central to the agricultural expansion of Western Canada in the late nineteenth and twentieth centuries. At their peak, more than 5,700 elevators stood across the Canadian plains, often lining railway corridors in small agricultural communities. Beyond their economic role, these structures became enduring landmarks that shaped the visual and cultural identity of the prairie landscape. Today, however, fewer than a hundred historic grain elevators remain, as many have been lost to development, structural deterioration, maintenance costs, and natural hazards.

This paper examines the use of digital heritage documentation to record these rapidly disappearing structures. Drawing on recent projects documenting the Markinch, Ogilvie, and Nanton grain elevators in Southern Alberta and Saskatchewan, we present case studies that employ terrestrial LiDAR scanning and photogrammetric recording to produce high-resolution three-dimensional datasets. These projects were undertaken in collaboration with local communities interested in preserving detailed records of historically significant buildings that may not survive long-term.

By reflecting on field methods, data integration, and practical challenges associated with recording large wooden industrial buildings, this paper highlights the role of digital documentation in preserving vulnerable heritage resources and supporting future research, interpretation, and education.

Looking Down, Looking Back: Drone-based Data Capture Revealing Insights into High Alpine Heritage
Format de présentation : In-Person
Auteur-e(s) :
  • Kelsey Pennanen - University of Calgary

In the southwestern region of the Yukon, vast mountains ranges watch over busy people and animals as they traverse up from the lakes and valleys below. High on these mountaintops patches of snow and ice remain year-round, a draw for sheep, caribou, and hunters for generations. These interactions are evidenced by the construction of dozens of built stone structures. Precisely placed along corridors and margins of once-invisible trails, these structures reveal to us immense knowledge of animal and human behavior and activity stretching back thousands of years.

The intersection of digital documentation using drone photogrammetry allows us to explore the placement of these structures in new ways. Based on testimonies of participants, the process of data collection allowed for renewed connection to the landscape and exploration into the relationship between animals and the citizens and guardians of these places. With a moratorium on caribou hunting and the uncertainty these places face with warming temperatures, these stone hunting features provide a legacy from past generations, leaving knowledge imbedded into the landscape and allowing descendants to have experiences and gain insights otherwise inaccessible. These features reveal to us knowledge of animal relationships, teachings, and practices left as a gift to future generations.

Midden Volume, Harvested Fish Biomass, and Pre-contact Minimum Population Estimates for Nuu-chah-nulth Territories in Barkley Sound, British Columbia
Format de présentation : In-Person
Auteur-e(s) :
  • Robert Gustas - Archaeological Survey of Alberta

Coastal shell midden deposits are a quintessential element of the archaeological record on the Pacific Northwest Coast recording thousands of years of daily life. Here I present new research which contributes to understandings of pre-contact Indigenous demographics and marine resource use in Nuu-chah-nulth Territories in Barkley Sound, British Columbia, Canada. This research combines spatial analysis, zooarchaeology, and human metabolic requirements to estimate the volume of midden sites, the harvested fish that they contain, and the minimum local human population that could have been supported from these fish. These archaeologically derived estimates of population and biomass are grounded in a computationally conservative inductive theoretical framework which draws on archaeological data and minimizes the use of analogy and historical comparison. I show that known Barkley Sound shell midden sites comprise over 100,000 m3 of sediment representing the harvesting of over 1,000,000,000 fish by Indigenous fishers. The calories derived from these fish would be sufficient to support a population of nearly 1,000 individuals per day over the last three millennia. This research offers a framework for creating volume, biomass, and ultimately population estimates in other coastal sites globally and has important implications for governance and natural resource policy in Indigenous communities.  

Never Quite Set in Stone: Digital Reconstruction and Physicalization of Pictographs for Knowledge Mobilization
Format de présentation : In-Person
Auteur-e(s) :
  • Mavis Chan - University of Calgary
  • Peter Dawson - University of Calgary

My research explores the application of filament painting, a 3D printing technique, in reconstructing Indigenous pictographs in Alberta, Canada. Pictographs, ochre paintings on rock surfaces, are under increasing threat. Over time, exposure to natural elements has contributed to the fading of many pictographs across Alberta, with human activity also posing a considerable risk. As the pictographs become increasingly difficult to see, sharing their meaning and the urgency of their preservation with the public has become increasingly important—and increasingly challenging. Without clear representation, raising awareness and developing public engagement in preservation efforts remains a major challenge. I successfully conducted photography-based reconstruction and generated 3D models and prints of some of Alberta’s pictographs at risk. It demonstrates the potential of digital preservation methods to communicate the urgency of rock art loss to broader audiences. It creates a practical tool for raising public consciousness about the ongoing loss of rock art heritage while simultaneously creating a tangible record for future generations. My findings suggest that the effectiveness of these reconstructions is not based on exact replication, but rather on their capacity to transform abstract concerns about cultural heritage loss into a tangible, lived understanding that inspires preservation action.

PRACTICAL APPLICATIONS FOR THE USE OF PHOTOGRAMMETRY TO RECORD PETROGLYPHS, A CASE STUDY FROM WRITING-ON-STONE
Format de présentation : In-Person
Auteur-e(s) :
  • Robert Dawe - Royal Alberta Museum
  • Owen Murray - OMM Photography
  • Karen Giering - Royal Alberta Museum

One of the largest inventories of rock art on the Plains occurs at Writing-On-Stone Park situated on the Milk River in southern Alberta. The petroglyphs that dominate this incredible record are fashioned on the weathering outcrops of sandstone bluffs and hoodoos. Erosion is incessantly diminishing this unique and important cultural resource. Various methods of accurately recording the artwork have been undertaken, including drawing, tracing, photography, casting and laser scanning, each of which poses certain challenges and limitations. We demonstrate the use of photogrammetry as an indispensable method of recording rock art. Our case study contrasts two examples of using photogrammetry: one at the Haven site, DgOw-79, and the other from panel 17 at site DgOv-2.  Photogrammetry provides an inexpensive, versatile, accurate, and readily available solution for recording three dimensional datasets for archival applications including monitoring of the condition of rock art. We believe the various benefits of photogrammetry should argue for this method of recording to be a regular consideration in the documentation of the deteriorating resource that rock art presents.

Technicians of Identity: Why Digital Heritage Matters to Communities
Format de présentation : In-Person
Auteur-e(s) :
  • Peter Dawson - University of Calgary

Many heritage sites that hold deep significance for communities and individuals lack formal designation or official recognition of their importance. As a result, they are especially vulnerable to destruction and loss, despite serving as powerful sources of cultural identity for descendant communities. In 2017, I established the Alberta Digital Heritage Archive, a research program dedicated to the digital preservation of heritage resources that frequently fall outside existing regulatory protection frameworks but to which communities and individuals maintain strong cultural attachments. Over the past nine years, our research group has created digital twins of more than 60 heritage sites across Western Canada. During this time, we have come to understand that personal memory shapes individual identity, while shared memory shapes collective identity—and that digital heritage can help preserve both. In this presentation, we examine how digital heritage can serve as a conduit through which the deep emotional and cultural connections people maintain with heritage places become visible and more widely recognized.

The Big Rock (Okotoks Erratic) Digital Conservation Management Plan
Format de présentation : In-Person
Auteur-e(s) :
  • Christina Robinson - Historic Resources Management Branch, Government of Alberta
  • Peter Dawson - Department of Anthropology and Archaeology, University of Calgary
  • Meg Berry - Seed Cultural and Environmental Heritage Ltd
  • Mavis Chan - Department of Anthropology and Archaeology, University of Calgary
  • Elisa Rubalcava - Historic Resources Management Branch, Government of Alberta

The Okotoks Erratic, a Provincial Historic Resource of Alberta, is an interpretive site open to the public 24 hours a day, 365 days a year. The erratic is the largest erratic in the Foothills Erratic Train and is culturally significant to the Blackfoot with multiple ochre pictographs. The conservation management plan at the erratic has evolved since its designation in 1978, and technological advancements in digital heritage have played a vital role. The Government of Alberta’s Historic Resources Management Branch has employed a variety of digital capture techniques, from digital photography to 3D laser scanning, to address a variety of issues and concerns at the erratic as part of an evolving conservation management plan. This presentation will outline the digital data capture technologies and methodologies employed at the erratic, the role of each of the technologies, and the future plans for the digital heritage conservation management plan at the Okotoks Erratic.

The Leavings: Monitoring Heritage at Risk
Format de présentation : In-Person
Auteur-e(s) :
  • Erica Maria Antoinette Van Vugt - University of Calgary
  • Dr. Peter Daswon - University of Calgary
  • Madisen  Hvidberg - University of Calgary


Many historic buildings in Alberta are documented using survey forms, photographs, and written condition descriptions. As a result, damage or collapse is often only noticed after it has already happened. Digital recording methods such as terrestrial laser scanning (TLS) enable the creation of 3D records of buildings and more precise measurement of structural changes. This paper explores how repeated TLS surveys can be used to track structural change at The Leavings (EaPk-171), a provincially designated historic site in Alberta. The site is layered, with Blackfoot, Métis, ranching, and North West Mounted Police presence. The study focuses on a sandstone/concrete/timber barn built in the 1880s by the NWMP, which is currently collapsing.

Between 2024 and 2025, the barn was recorded during several visits using a mobile (GeoSLAM ZEB Horizon) and a stationary (Zoller +Frohlich 5010x) scanner. The resulting 3D point clouds were aligned and compared to identify areas where parts of the structure had moved, shifted or been lost.
The results show that TLS can reveal patterns of structural change that are difficult to see during normal visual inspections. This project demonstrates how repeatable 3D recording can help document and monitor structural change in vulnerable heritage buildings.

Transforming GPR Data into Physical Models for Subsurface Visualization
Format de présentation : In-Person
Auteur-e(s) :
  • Farima, Peter, Faramarz Golchin, Dawson, Samavati - University of Calgary

Ground Penetrating Radar (GPR) is a non-invasive geophysical technique that uses high-frequency radio waves transmitted into the ground to detect changes in subsurface materials. In archaeology, it is used to identify, map, and interpret buried structures, features and stratigraphy without need of excavation. GPR produces radar profiles and time slice images that are caused by contrasts in buried materials, but they do not directly identify archaeological features. As a result, the interpretation of GPR data can be challenging for non-specialist stakeholders. Data physicalization is the process of translating digital or numerical data into tangible, three-dimensional objects that people can see and touch. By materializing data in physical form, complex information—especially spatial data—can become easier to interpret, explore, and communicate. In this presentation, I examine how physicalization of GPR data sets might be used in communicating subsurface anomalies to non-specialists in a more intuitive way.