Picture of the week

Brian found this probable Besant point, about 2500 years old, doing HRIA surveys of fire-salvage cutblocks near Anzac, Alberta this week.

 

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Photo of the Week

This week we feature a picture of an asymmetrical knife found north of Lac La Biche at a site called Buffalo Beach. The knife has one rounded retouched cutting edge and the other edge is straight. The notched knob at the bottom of the artifact is where the knife would have been attached to a handle. The handle was likely made from an organic material that does not preserve as well as stone (for example bone, antler, wood, etc.). The style of this knife does not match any previously recorded artifacts found in Alberta.

Picture of the Week

This week we feature a stone tool found upstream on Fall Creek, about 55 km west of the community of Caroline, AB. We were undertaking an assessment for Sundre Forest Products and testing a flat area overlooking the creek (shown below) when Ryan found the end scraper shown above.

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A “scraper” is a type of tool that is usually unifacial, meaning the stone was worked on one of its sides (or faces) only. Compare the two sides shown in the image above and you’ll see the one shown on the left is much smoother, except for a small piece that may have been broken off when digging the shovel test. The face of the scraper that is worked typically has pieces chipped off on the side or end in order to make a thick and strong edge. This is the scraping edge that could be used to prepare hides.

Unifacial working and a thick edge are the two main criteria used when identifying an artifact as a scraper, so as you can imagine there are a lot of different styles of scrapers found at archaeological sites. Just take a look at the beautiful example Reid describes in this blog post.

Regardless of what style of scraper you’ve found, a close look at the edge of these artifacts can reveal some “use wear,” when the edges become chipped, polished or worn down through the process of scraping hides, bone, wood or other softer materials. As a result of this wear, scrapers would occasionally need to be resharpened and the tools would become smaller and smaller through the resharpening process. It’s possible this scraper was considered too small to be of any more use and so was thrown away only to be found by us, perhaps thousands of years later.

Picture of the Week

This week we feature an artifact found recently while conducting a survey for an Associated Aggregates gravel pit along the Nordegg River. The artifact is an irregular biface that is likely a preform. A preform is often an ovate or triangular shaped rock that has been flaked on both sides using percussion and pressure flaking techniques. This artifact was likely in the early stages of becoming some form of tool (e.g. knife or projectile point) before it was discarded by the flintknapper.

It is not clear why the flintknapper quit working on the artifact, the knapper may have made a mistake or did not like the stone material. The artifact is made from a unique red speckled chert with some fossilized plant remains embedded on the dorsal side of the artifact. We asked the consulting community if they knew what kind of chert the artifact was made from and Jason Roe, Lifeways Canada, identified the material as Paskapoo chert.

The artifact was found at a site identified by our clients, Dan Hill and Jodie Bauman, who were interested in the process of historical resource impact assessments (HRIA). While screening a shovel test, under the supervision of our archaeologists, Jodie found a large utilized quartzite flake. Further testing, revealed the site was over 200 m long and had evidence of fire (fire cracked rock) and tool making (biface).IMG_0147_resizedP2S0001

Picture of the Week

This week we feature an artifact from a large site we found on the Pineneedle Creek valley margin, west of Caroline (a community between Rocky Mountain House and Sundre) and off of the Forestry Trunk Road. The site was found when we were undertaking an assessment for Sundre Forest Products. More than 100 stone artifacts were recovered from this site, most of which represent chips broken off when making stone tools. This one stands out from the rest. It’s not so obvious an artifact as some of the stone tools we’ve shown in previous blog posts, but it represents the other critical component of an arrow or a spear: the shaft.

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Figure 1: Two sides of an ancient spokeshave.

This is a “spokeshave”. This kind of tool is used even today for shaping and smoothing wooden rods for wheel spokes, chair legs, paddles, etc. You can find a spokeshave at your local hardware store, but it will look nothing like the example shown above.

An ancient spokeshave is thought to have been used to shape shafts for arrows, spears and darts. It’s recognized by the semi-circular notch on its side where you can imagine a wooden rod fitting nicely. In the picture above, the arrows are pointing to the notch on this artifact.

In many parts of Alberta, the soil is so acidic that materials like bone and wood don’t preserve so we don’t find arrow shafts. It’s pretty exciting and humbling to find an artifact that reminds us that there were once many more materials at these sites.

Picture of the Week

This week we present one of the artifacts from a site we found while doing surveys for Sundre Forest Products on the North Saskatchewan River in 2015. More than 30 artifacts were found through shovel testing at the site, but this one is extra-special. It’s a dart point of the Besant style. Above is a photo of the point right after Corey found it in the screen we use to sift soil from the shovel tests we dig while looking for sites.

One reason this artifact is so special is because it helps us estimate how old the site is. We don’t have a precise date for when people were at this site because that usually requires finding an artifact made of material that was once living, like wood or bone, that can be sent to labs to be dated through special techniques. Unfortunately these kinds of material don’t preserve well in the acidic soil of the Boreal forest, but by finding a point like this we can give an estimate of the site’s age. Besant points have been found in Alberta at sites dating between 2,550 and 1,400 years ago. That means that before this photo, the last time the point was seen may have been more than two thousand years ago!

In addition to being one of the few artifacts we find that can be used to figure out how old a site is (and teach us about how people were living in the past and how that changed over time), this artifact is special because we don’t find points often. Most people have seen arrowheads like this at some point, but they’re not commonly found when archaeologists are at the test pitting stage of their work. Instead, we usually find all the rock that gets broken off when the past person was making the tool. We call those pieces “flakes” and there are way more flakes out there than points. That’s why it’s always a big deal to find a point through shovel testing. Look how happy Corey is at finding it in one of his shovel tests!DSCF2440_resized

 

Picture of the Week

This week’s photograph is of an artifact we found in 2015 when undertaking an HRIA for Sundre Forest Products. It comes from a site south of the Ram River – our 100th site of the year, in fact. It’s an exciting find: a spear point of the Agate Basin style. The picture above was taken when it was found and the picture below shows the point after it was catalogued in our lab. We have found our fair share of points over the years, but this is a rare one because of its age. Agate Basin points are some of the oldest found in the province and date between 10,200 and 9,600 years ago.

FbPu-31_8_IMG_0106The site was identified when we were surveying a disturbed area. Like Corey explained in his blog entry, a lot of information may be lost when a site is disturbed because the relationship of one artifact to another has been disturbed. Although we always hope to find sites intact and undisturbed, disturbances like erosion can allow archaeologists to see a larger area of soil than through shovel testing alone. This artifact was found lying on the ground when we were walking over a ridge. This is why archaeological assessments in disturbed areas can be worthwhile. It’s also why archaeologists are hard to walk with – they’re always looking down, searching for artifacts in even the most unlikely places.