Note: This is a revised and condensed version of an article we recently published in the Saskatchewan Archaeological Newsletter Quarterly, May, 2021 edition, regarding our search for the the Chesterfield House fur trade sites in Spring, 2021. Readers are referred to this edition of the Quarterly for a more detailed version of our findings.
Time and the Unknown
Ah, the mystery of the unknown! It’s one of the things that first drew me to history and archaeology. The thrill of discovering new facts, objects or places, lost or abandoned centuries ago. It didn’t matter if they were only minor footnotes in the bigger picture of human history.
One of the most rewarding and challenging experiences in my career was searching for the many lost fur trade posts in western Canada. The remains of some lay hidden in front of our very noses. Others, so remote and covered by nature, it took considerable effort or sensitive equipment to eventually find them. Still others guard their hiding places well, and to this day, elude discovery.
This is a story about a search for one of those fur trade post that has eluded us for many years – Chesterfield House. A search that began in the mid-1960s. But for me it began in c.2005 and continues to this day. Because no one has yet found Chesterfield House.
Searching for Canada’s Fur Trade Forts
In an earlier blog I talked about explorer and mapmaker David Thompson. One of the world’s most remarkable geographers and mapmakers. Thompson visited many western fur trade forts and wrote about them or mapped them. Often he left behind clues for us relocate them. Such as the NWC/HBC Fort Vermilion I (c1798-1830) site in northern Alberta. (https://canehdianstories.com/wp-admin/post.php?post=1894&action=edit)
In this post I focus on another lesser-known but equally competent trader, surveyor and mapmaker, Peter Fidler of the Hudson’s Bay Company (HBC). And in particular, his brief, and sometimes scary stay in southern Saskatchewan at the confluence of the South Saskatchewan and Red Deer Rivers where he would build his fort.
In the fall of 1800 Fidler built Chesterfield House for the HBC. Soon after the North West Company (NWC) built alongside the HBC post, followed by the XY Company. Many (including me) have searched for them but, to this day, they have never been found.
Peter Fidler
Born at Bolsover, Derbyshire, England, Peter Fidler (16 August 1769 – 17 December 1822) joined the HBC in 1788. He was trained in surveying and astronomy by Philip Turnor who also trained David Thompson. Fidler became the Company’s chief surveyor and map-maker, much like David Thompson for the NWC.
While acting as trader, explorer, and mapmaker, Fidler also observed and wrote about the Indigenous peoples of the region. He married a Cree woman and learned Native languages to carry out the trade. Occasionally he convinced his Native informants to draw maps of their territories for him. Today these are some of the few surviving Native maps of western Canada (see a former post on the Ki-oo-cus map of southern and central Alberta. (https://canehdianstories.com/wp-admin/post.php?post=266&action=edit). His journeys, largely undertaken in western Canada, covered an estimated 48,000 miles on horseback, foot, canoe and dog team.
Fidler’s superiors admired his toughness and fortitude. For example, while traveling and wintering with the Chipewyan in northern Alberta and the NWT, a near-starving Fidler mentioned what parts of a game animal they ate to stay alive: “We eat everything except the manure.”
Fidler had some incredible adventures as a trader and explorer for the HBC. A few could have ended his life. One of these adventures required constructing a fur trade post on the Western Canadian prairies. He built the fort with the intent of trading with Plains First Nations peoples. After only a few years, Fidler and the other Companies abandoned their forts, barely escaping with their lives.
Where did the Companies Build?
For many years I heard about the mysterious Chesterfield House(s) and attempts to find them. All searches ended in failure. But why? How could three forts of considerable size, just disappear, without a trace, in the valleys of the Saskatchewan and Red Deer Rivers? Or perhaps, as some researchers suggested, had those waters already swallowed them up leaving no trace behind?
In 2005, while visiting and hunting in the area, and intrigued with the lost Chesterfield House, I too joined the search.
As with other similar searches, nothing is ever as simple as it first appears. This quest was no exception. It has taken me since 2005 to finally piece enough evidence together to make the modest claim that I might have a candidate where these fur trade forts were built. And I, like others before me, could be totally wrong.
Let’s start our search with Fidler’s Chesterfield House HBC journals (1800 – 1802). In them he gives only a few but very specific references to the fort’s location.
Fidler gives the latitude of the south bank of the Red Deer River where he intends to build: 50o, 55’, 5” (50.9222o). Fidler’s latitude calculations were quite accurate. Longitude was not. But, if we take Fidler at his word, we really don’t need longitude because Fidler gives us a fairly precise east-west reference point where he built the fort – the confluence of the two rivers.
While rereading Fidler’s published journals (for the umpteenth time) this spring, I noticed at the end of the 1800-01 trading season a note by the editor: “[Meteorological and Astronomical Observations, made at Chesterfield House, covering 15 manuscript pages, not printed]” (From Alice Johnson 1967:268. Saskatchewan Journals and Correspondence 1795 – 1802. The Hudson’s Bay Record Society, Volume XXVI). I wondered if Fidler gave a more accurate reading of latitude and longitude for Chesterfield House in those unpublished notes. Fortunately I was able to get hold of a copy of his original journal, including the missing 15 pages.
Yes, indeed. Fidler gives two readings for latitude at Chesterfield House: 1) 50o55’12” (50.920o); and, 2) 50o55’21’’ (50.9225o). Both readings are relatively similar to his original north riverbank reading recorded at the confluence of the two rivers where initially he wanted to build. Had they been significantly different then it might suggest he built elsewhere (than right at the confluence).
Next I looked at a few historic maps of the area. One map shows the location of Chesterfield House, marked by a dot, on the north side of the South Saskatchewan River, some distance downriver from the forks. But Fidler stated, “…opposite the mouth of the Red Deers River where we are to build…”
Then I found another map drawn by both Fidler and his Blackfoot informant, Ak ko Wee ak in 1802. Does the straight line across the Red Deer River, with Chesterfield House’ written on it, indicate where the fort was built? If so, it was built upriver from the confluence of the two rivers.
Unfortunately no one, while searching for the forts, has taken the Native maps or Fidler’s latitude reading of the forts location very seriously. Keep in mind, Fidler was a very accurate surveyor for his day, especially when it came to calculating latitude. His readings were out by about 15 seconds of latitude, or +/- 450 metres.
If we ran his latitude for Chesterfield House as a straight straight line across a current map, assuming about 15 seconds (~450m) of error (shown by orange dashed lines on either side of the black line), where might the fort(s) be located?
Another little hint, where the Chesterfield forts might have been built, was a comment in Peter Fidler’s journals. “Dug up the small bateau that was laid up in the spring: the heavy rise of water in the summer had buried it four feet deep in sand.” (From Alice Johnson 1967:268. Saskatchewan Journals and Correspondence 1795 – 1802. The Hudson’s Bay Record Society, Volume XXVI). Presumably the boat was near the fort. If so, it suggests the fort was located on an inside meander of the river, where flood sediments are deposited. Instead of the outside meander where high water cuts away the bank.
We haven’t looked for these forts at all the possible places that are within Fidler’s range of error for latitude. And there are reasons for it. This is large area filled with dense wolf willow scrub and wild rose bushes that is not too pleasant to walk through, or find things. And Fidler’s reference to the forts being built at the forks of the rivers has perhaps been taken too literally. Would the London Committee reading his journals really care if he built a mile or two either way of the forks?
To add yet another obstacle to our search, not everything historical in this area is related to the early 19th century fur trade. This area was occupied and traveled over for thousands of years by First Nations Peoples. It became an important Metis settlement, Riviere La Biche, in the 1870s and 1880s, which would have left physical remains similar to those present at earlier fur trade forts.
The Search Continues, Spring 2021
This spring (2021), when preparing this blog, I wanted a good satellite image of the forks area where Chesterfield House might be located. While doing so I noticed a long rectangle-shaped, light-colored outline on the satellite image.
After reviewing the historic documents, satellite images, and constructing arguments that this might be the lost Chesterfield House forts, the next step was to re-revisit the site and look for physical clues on the ground.
So, my wife, Gabriella Prager, also an archaeologist, and I drove to the Empress area in April to see what we could see. When I visited this same location in 2005, I saw some rock scatters and slight depressions. It was time to reevaluate what those features might be, relative to this new-found evidence.
Once there, we looked for depressions, pits, rocks or mounds or any other evidence that could indicate a human occupation. The surface of this area is quite undulating and uneven from repeated flooding and scouring over the years. Just how much sediment covers the original 1800 ground surface is uncertain without excavating. However, based on other floodplains of this vintage (e.g., the NWC/HBC Fort Vermilion I site, northern Alberta), there could be as much as one-half metre or more sediments covering the original land surface and the remains of anything built on that surface. Fidler’s description of the bateau buried in over four feet of river sediments is most telling in this regard. And that was just one of many flooding events since then.
When walking the area we noticed the ground was slightly elevated on the east and south sides. These elevated areas were likely responsible for the light-colored lines we saw on the satellite image. Normally, old stockade lines are slightly depressed, even after flooding. We did however also notice a few rock scatters and slight depressions with the rectangular outline.
What We Concluded
It would be folly to state, without first excavating and testing this area, that we have discovered the Chesterfield House sites. We first need to find certain kinds of other archaeological evidence to suggest that these features, and that intriguing rectangular satellite image, are related to the early 19th century fur trade, and not some later period Metis household: 1) footer trenches representing palisades; 2) early 19th century artifacts representing the time period in question; 3) more building remains confined to the rectangle; and, 4) considerable amounts of animal bone from both human consumption of wild game and making meat provisions for the trip downriver.
There are things about this site that are troubling and do not fit what I expect to see on the surface of the ground; if this were a historic fur trade fort. First is the lack of more obvious visible surface features such as chimney piles and cellar depressions. Second, is the lack of visible faunal debris, or any artifacts. Given the amount of meat consumed, animal bone remains are typically considerable at forts such as this.
To some degree, this lack of evidence might be explained by the amount of flooding that has occurred in the area. If substantial, it may have covered any historic remains with considerable sediments and infilling most depressions that would be cellars, privies, and refuse pits. However, at other fur trade sites abandoned for over 200 years and constantly flooded, we have observed more pronounced surface features than we see here. However, currently we know little about flooding episodes and depositional rate of sediments of the Red Deer River, which could be quite different from our northern rivers.
To be clear, without further investigations, what we (and others) have found is definite proof of a human occupation of some sort at this spot. Based on the historic evidence regarding Chesterfield House, this location is a suitable candidate for these early NWC, HBC and XY Company forts. But, that’s as far as we can go presently. The area warrants further archaeological investigations to either refute or verify our claim.
EndNote
For those of who you who are aspiring students of history or archaeology, there’s a simple lesson here. Combining the evidence from two disciplines (history and archaeology) usually results in a more complete understating of human history. Not always, but better two independent lines of evidence to examine a problem of history, than only one. And perhaps, with the new remote sensing imagery, more than only two disciplines is necessary to eventually find these rather elusive historic forts.