archaeology

Hunting With a View: Excavations at the Hummingbird Creek Site (FaPx-1) in Alberta’s Central Rockies

In 2009, the Archaeological Survey of Alberta discovered the Hummingbird Creek Site (FaPx-1), an archaeological site rich in stone artifacts, animal remains, and hearth features, in Alberta’s central Rockies. The site resided on a high terrace above Hummingbird Creek and the South Ram River, an ideal location for observing the valley below. Radiocarbon dates from the site’s lower levels indicated it was occupied from between 2,500 – 2,400 years ago, and upper levels dated from 1,000 – 700 years ago. This past August, Timothy Allan (MA student at the University of British Columbia), members of the Archaeological Survey of Alberta, and the Red Deer Archaeological Society returned to FaPx-1 to complete excavations at the site. The team found atlatl (or throwing spear) projectile points, hide scrapers, stone tool debris (flakes), and animal bone. (more…)

Connecting the Continent: Stone Tools in Alberta

After a few thousand years, most of the archaeological record in Alberta has been winnowed down to pieces of rock used to make tools. Organic artifacts, structures, and other less durable things generally don’t survive thanks to erosion and decomposition. To maximize the information we can pull from those pieces of stone, the Alberta Lithic Reference Project (ALRP) was formed by a consortium of archaeological consultants, heritage managers, geologists, students, and university researchers. The goals are to accurately and consistently identify the types of raw materials that pre-contact people used to make stone tools. Why is this important? Specific types of rock were traded and moved widely across the continent and serve as valuable indicators of cultural relationships and/or human mobility patterns. (more…)

ARCHAEOLOGICAL SURVEY IN NUMBERS PART THREE : ARCHAEOLOGICAL SITE INVESTIGATION

This week’s post is part three of a series of infographics about the Archaeological Research Permit Management System at the Archaeological Survey of the Historic Resources Management Branch.

Previous posts:

ARCHAEOLOGICAL SURVEY IN NUMBERS PART TWO : ARCHAEOLOGICAL PERMIT HOLDERS AND COMPANIES

THE ARCHAEOLOGICAL SURVEY IN NUMBERS 2016 – PART ONE: ARCHAEOLOGICAL PERMITS

ARCHAEOLOGY AND DEVELOPMENT: STATISTICS FROM THE HISTORIC RESOURCES MANAGEMENT BRANCH

Archaeological Survey in Numbers Part Three Archaeological Site Investigation

Bonus Video!

This video shows a time lapse of archaeological sites recorded each year by archaeologists beginning in 1912.

Old as… ?: Dating Archaeological Sites

Knowing the date of an archaeological site is one of the things that makes it most interesting – when were people here?

Two main types of dating are applied to archaeological sites when possible– relative and absolute dating. Relative dating puts sites or artifacts “in order” by simply determining if one event happened before or after another. A common example of relative dating in Alberta is by using Mazama Ash. About 7600 years ago, Alberta was blanketed in ash after the Mazama volcanic eruption. This ash is still sometimes found today in stratigraphic profiles, buried under other deposits of sediment. When this ash is encountered it can be used as a time marker. Anything below it is older than 7600 years and anything found above it is younger than 7600 years.

Example of a buried volcanic ash (also known as tephra) found during archaeological excavation. The ash is the lightest coloured layer in the profile, between 25 and 35 cm below the surface (between the 1 and 3 on the tape measure).

Relative dates can also be obtained using artifact styles. Projectile points are one of the most common types of artifacts used to relatively date sites. Spearpoints represent the oldest projectile point technology and indicate that the site falls within the “Early Prehistoric Period” (11,200-7,500 calendar years before present), dartpoints are representative of the “Middle Prehistoric Period” (7,500-1,350 calendar years before present) and arrowpoints represent the emergence of the use of bow and arrow in the “Late Prehistoric Period” (1,350-250 calendar years before present). Dates can be further refined within each general time period based on the spear, dart or arrow style.

Absolute dating is more specific than relative dating and provides a more exact date (with standard deviation) of when the site or artifact was used. There are several methods of absolute dating but one of the most common methods used by archaeologists is radiocarbon dating. Radiocarbon dating can be used on organic material such as bone or charcoal. A radiocarbon date can be obtained by measuring the amount of (more…)

Mountain Movement: How the Rockies Shape Alberta

Most of Alberta’s Rocky Mountains finished uplifting 50 million years ago – they’ve been pouring sediment across the province ever since. The Rockies shaped our water drainage network and, with the help of glaciers, erected the house of silt, sand, and stone that we all live in. The tilt that our mountains built is largely responsible for the development of our prairie soils and modern agriculture. Our mountains have also shaped how cultures interact and move, which has moulded much of our history.

At first glance, the Rockies are imposing – an impressive barrier rising from the foothills like a stony gate. But for thousands of years, people traveled across and within them to trade and acquire goods. Groups in southeastern British Columbia, like the Kootenai, often descended into Alberta’s valleys to hunt bison and other big game. The Kootenai engaged in trade and formalized sport (like the hoop and arrow game) with local Blackfoot, Cree, and other groups. Large caches of meat and hides were then transported back across (more…)

Back on the Horse: Spreading Archaeology in Alberta

The Archaeological Survey of Alberta is proud to announce the re-establishment of an occasional paper series that served as the principal means of sharing archaeological information in the province from 1976 to 1994. The series consisted of annual review volumes (with papers that summarized a years’ worth of archaeological projects) and thematic volumes that showcased current projects and research pertaining to a specific region or topic in Alberta archaeology (past volumes can be accessed here). To kick-off the series revival, we present a volume of 16 articles led by current and former staff of the Archaeological Survey of Alberta and Royal Alberta Museum. The articles present new methods, approaches, and results of archaeology in the province. The current and all future volumes will be available for free download. (more…)

From North Dakota with Flair

The St. Mary Reservoir, near Cardston in southern Alberta, was built and filled by the early 1950s. During reservoir draw downs and droughts, lake bottom sediments are exposed and quickly eroded, which has revealed a unique collection of artifacts and even trackways of now extinct megafauna like mammoth and camel.

Two particularly interesting artifacts are termed ‘eccentrics’ because their shape and significance are so unusual. Eccentrics are very rare artifacts, the shapes of which are thought to be determined more by aesthetic rather than functional reasons. Some archaeologists think that the large flintknapped stone artifacts from St. Mary Reservoir are symbolic representations of the branched “horns” of pronghorn antelope once common across the Great Plains. Others think they may have been ceremonial knives used on special occasions.

figure-1-eccentrics-colour

Knife River Flint ‘eccentrics’ from St. Mary Reservoir. The different colourations of these pieces are due to ‘patination’. This is when a chemical rind develops over time around particular edges or faces of artifacts depending on their exposure to different local conditions (courtesy of Shayne Tolman).

(more…)