Saturday, 9 May 2026

MCABEE: FOSSILS & FIREWORKS

"Look, a fossil fish!" The cries of a young paleontologist in the making echoed down the shale cliffs at the Eocene fossil quarry of McAbee time and time again this past summer... and will continue if the folks who operate the quarry have anything to say about it. 

Known to locals for many years, the site is becoming more and more popular with tourists who flock to the hill wide-eyed with wonder at the bountiful fossils to be found.

Over the Canada Day long weekend, a group of keen collectors from Vancouver met up with several keen locals to enjoy a weekend of fossils and fireworks. Just four hours from Vancouver, McAbee is just outside the town of Cache Creek, deep in Cariboo country.

While the site is now an arid hillside topped with finger-like hoodoos, some 51 million years ago McAbee was a large, flourishing lake. As fish and other inhabitants died, their remains settled to the bottom and were preserved in the diatom rich sediments that would one day become shale.

The light shales allow for easy collecting and most of our group opt for small geologic hammers over the more weighty sledges required at other sites. Patricia Coutts and Philip Torrens worked their magic and chisels, unveiling fish and many plant fossils from freshly mined slabs, while Amir Zarifnia and Leanne Sylvest searched the plentiful float for missed treasure – insects and rare flowers. 

No matter what your collecting style, McAbee is very satisfying as you can find dozens of magnificently preserved fossils within a few hours of collecting. Named after settlers of a nearby homestead, McAbee has been a popular collecting site for locals for over twenty years. 

Originally sampled as part of a paper on fossil plants by Dawson back in 1879 and dated by Mathews in the early 1960’s, the site was all but ignored until local fossil collectors began making regular visits in the mid-eighties.

Today, McAbee is in high demand. Easy access off the highway and having much of the overburden being removed for you make the site a dream. Smack dab in the Interior, McAbee is 65 km west of Kamloops and just 13.6 km east of Cache Creek, an easy four-hour drive north of Vancouver. 

Both popular and prolific, McAbee is unusual in that it is the only site in British Columbia to operate as a commercial venture. In the early 1990’s, Dave Langevin, a local fossil collector from Kamloops, secured the mineral rights and together with Robert Drachuk, opened the site up to the public.

Dave’s enthusiastic vision of McAbee as a fossil research and popular collecting site for new paleo enthusiasts has not waned. He has worked hard to share the site with scientists and families alike. Many locals have had their first introduction to paleontology on the hillside and many papers and articles have been published because of his cooperation.

Looking back on photos from my collecting trips with my family in the early 1990’s, the only giveaway that this is the same site are the telltale hoodoos, tall pillars of basalt that line the hillside. Back in the day, McAbee had a few small quarries, a steep path and a large scree slope. Today, the 300-meter outcropping is largely exposed with a rugged, but drivable road. The road provides multiple benefits, one being an easy route up and down for those with tired legs and plentiful finds another is the greatly expanded collecting area.

This expansion has led to the discovery of many new and exciting finds. When I originally collected at the site most of my finds were of Ginkgo dissecta, one of the more popular plant varieties found here. Within a few hours, more than a dozen species of plants and insects could be collected. 

Today that list is greatly expanded. Comptonia, a common shrub, sassafras, katsura and over 40 Broadleaves and 17 Conifer species have been found in the shales of this as yet unnamed formation. Wasps, leafhoppers, flies, including a 3.5 cm Scorpion fly, have been added to the long list of fossil insects.

McAbee affords a magnificent view of the Thompson River Valley. It is also very near the town of Cache Creek and along with its cowboy charm has many tourist offerings, the Shuswap Native Village, Bonaparte Bend Winery & the Historic Hat Creek Ranch.

We stayed at one of the cabins at the ranch. Enjoying the warmth of a fire and a bottle of wine from the Bonaparte Winery in the evening, we were excitedly going over the day’s booty when we met the Boucq family traveling from France. 

Their two sons were mesmerized by the fossils and with their interest peaked; we shared tales of fossil bounty at McAbee. We were pleased to welcome them when they showed the next day to collect fossils for themselves. In no time they were set up with safety and collecting gear and in a few short hours had made many nice finds themselves.

McAbee makes for a great family trip as there is very little hiking, the fossil are plentiful and well off the road. Everyone in our group found more fossils than they could have imagined. My collection grew to include many more insects, several flowers, a few fish and even some fossil feathers – sweet!

Much of the more interesting finds of late have been discovered by, John Leahy, who now acts as guide and interpreter. With a natural love of the outdoors and keen interest in fossils and geology, John has undertaken the monumental task of documenting the specimens found at the site and generously sharing his work with the paleontological community. 

After a rocky road, those with an interest in McAbee have found a truce. As John says, they continue to work hard to blend commercial and scientific interests – a concept that remains unpopular in BC.

But McAbee remains popular with those who love fossils and those who want an afternoon away with their families. On one particularly hot afternoon, there are more than a dozen keen collectors dotting the hillside. Leaving them to their work, Patricia and I enjoyed a relaxing visit with Linda, Dave’s wife and Dot, her sister, down at Dot’s home at the base of the hill. Hailed by Dave, we scrambled from the shelter below to one high on the hill, set up to provide a little protection from the elements and today providing a nice retreat for a bite of lunch as we pool our culinary resources and enjoy an impromptu weenie roast a la Dave in the welcome shade.

As well as the land of plentiful sunshine, the Cariboo is known as rattlesnake country. In between hotdog bites, John continued our orientation and assures us no snakes have been seen but there have been a few black widow spiders. Good to know but as I poke about, weary of reaching my hand into dark holes… you can never be too cautious. For the most part we pose a much greater risk to them than they do to us. 

With the group gathered, John shows us his finds from earlier in the day… fish, fish, flower, sassafras…more fish. A keen eye and quick wit make him a delight as our guide. Over the weekend, he and his family hosted us, along with Cheryl Kabloona of the Thompson Nicola group, for a dinner and evening of that famous Interior hospitality including a much coveted tour of his personal fossil collection, all carefully prepared and meticulously catalogued.

One of John’s more romantic finds is of his family of Eohiodon rosei fossil fish… mom, dad and baby. A find that elicits an “ahhhh” from the group. Eohiodon rosei are extinct relatives of the modern mooneyes, a smallish (7.5cm) freshwater fish found in many rivers and lakes to the south and east of British Columbia today.

The Eohiodon rosei were likely in their heyday back in the Eocene lake at McAbee, being the one of the larger carnivorous predators in the lake and enjoying the many insects blown from above and perhaps even some of the small crustaceans below. Partial specimens of another larger fish have been found but have not been described to date. Perhaps we’ll see a paper on this from Dr. Mark Wilson, from the Royal Ontario Museum, who has studied the Middle Eocene Freshwater fish of the Okanagan Highlands, including the Eohiodon rosei found at McAbee.

One of the most prolific researchers on the site is Bruce Archibald, founder of the Vancouver Paleontological Society. Now at Simon Fraser University, he published on the bountiful insects while working and studying at the Museum of Comparative Zoology, Harvard University. At the Fourth BC Paleontological Symposium in Kamloops he presented “Eocene Insect Fauna of the Okanagan Highlands: Change in Diversity and Assemblage through Climate and Time.” 

His work tells us that the Okanagan Highland fossil sites, a slightly misleading term used to describe the fossil sites at Smithers, Quilchena, Allenby, Tranquille, McAbee, Princeton and Republic, range from Early to Middle Eocene, a broader time span than originally thought.

The Eocene is considered to be 33.9 +_ 0.1 to 55.8 +_ 0.2 million years ago. The fossil record tells us that this part of British Columbia and much of the Earth was significantly warmer around that time, so warm in fact that we find temperate and tropical plant fossils in areas that now sport plants that prefer much colder climes, or as is the case in the Arctic, snow and ice.

A sediment core excavated from 400m below the seabed of the Arctic Ocean in 2004 showed that Fifty-five million years ago the North Pole was ice-free enjoying tropical temperatures and the sea temperature was about 20C, instead of the average we see now of about –1.5C, a truth that is hard to imagine today even with all the hype around global warming.

The bottom end of that core helped explain the warmer temperatures seen at McAbee and around the globe by revealing a dramatic global event known at the Palaeocene-Eocene Thermal Maximum. It looks as though a gigantic emission of greenhouse gases was released into the atmosphere and the global temperature warmed by about 5C. While we are the likely culprits of much of the warming of the Arctic today, natural processes operating in the not too distant past have also resulted in significant temperature fluxuations on a world-wide scale.

While the area around the Interior of British Columbia was affected. McAbee was not as warm as some of the other Middle Eocene sites, a fact inferred by what we see and what is conspicuously missing. In looking at the plant species, it has been suggested that the area of McAbee had a more temperate climate, slightly cooler and wetter than other Eocene sites to the south at Princeton, British Columbia and Republic and Chuckanut, Washington. Missing are the tropical Sabal (palm), seen at Princeton and the impressive Ensete (banana) and Zamiaceae (cycad) found at Republic and Chuckanut, Washington.

Through a slight misunderstanding, for years I was convinced there were pond frogs found at these sites. It wasn’t until sometime around 1997 that I realized they were p-a-l-m…f-r-o-n-d-s. Even after much collecting I hadn’t put two and two together. 

But, palms, frogs and cycads excluded, the group found plentiful fossils, great hospitality and memories to hold onto. While the site boasts fossils from a temperate climate, the warmth of our hosts and the heat from the sun made McAbee feel likely much as it would have during the tropical heyday of the Eocene. Everyone on the trip came away satisfied with more fossils than they had imagined they would find and a keen interest to return next year.

References

Archibald, S.B. and Makarkin, V.N. 2006. Tertiary Giant Lacewings (Neuroptera: Polystoechotidae): Revision and description of new taxa from western North America and Denmark. Journal of Systematic Paleontology 4 (2):119-155.

Archibald, S.B. Cover, S. P., and Moreau, C. S. 2006 Bulldog Ants of the Eocene Okanagan Highlands and History of the Subfamily (Hymenoptera: Formicidae: Myrmeciinae). Annals of the Entomological Society of America 99: 487 – 523.

Archibald, S.B. 2005. New Dinopanorpidae (Insecta: Mecoptera) from the Eocene Okanagan Highlands (British Columbia, Canada; Washington State, USA). Canadian Journal of Earth Sciences, 42: 119-136.

Archibald, S.B. and Greenwood, D.R. 2005. The Okanagan Highlands: Eocene biota, environments and geological setting, southern British Columbia, Canada and northeastern Washington, USA. Canadian Journal of Earth Sciences, 42: 111-114.

Archibald, S.B., Rasnitsyn, A.P., and Akhmetiev, M.A. 2005. The ecology and distribution of Cenozoic Eomeropidae (Mecoptera), and a new species of Eomerope Cockerell from the Early Eocene McAbee locality, British Columbia, Canada. Annals of the Entomological Society of America, 98: 503-514.

Archibald, S.B. and Makarkin, V.N. 2004. A new genus of minute Berothidae (Neuroptera) from Early Eocene amber of British Columbia, Canada.The Canadian Entomologist, 136: 61-76.

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Beard, G. 1996. Behaviour of Some Eocene Insects, BCPA Newsletter No. 12

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Dawson, J.W., 1879. List of Tertiary plants from localities in the southern part of British Columbia, with the description of a new species of Equisetum. Can. Geol. Surv. Rept. Prog. 1877-8 B, pp. 186-187.

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Evolving Earth. 2006. http://www.evolvingearth.org/paleocollaborator

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Makarkin, V.N., Archibald, S.B. and Oswald, J.D. 2003. New Early Eocene Brown Lacewings (Neuroptera: Hemerobiidae) from Western North America, The Canadian Entomologist, 135: 637-653

Makarkin, V.N. and Archibald, S.B. 2003. Family affinity of the genus Palaeopsychops Andersen with description of a new species from the Early Eocene of British Columbia, Canada (Neuroptera: Polystoechotidae). Annals of the American Entomological Society, 96: 171-18.

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Mathews, W.H. and Rouse, G.E., 1963. Late Tertiary volcanic rocks and plant-bearing deposits in British Columbia. Geol. Soc. Am. Bull. 74, pp. 55-60.

Moss, P.T., Greenwood, D.R., and Archibald, S.B. 2005. Regional and Local Vegetation Community Dynamics of the Eocene Okanagan Highlands (British Columbia/Washington State) from Palynology. Canadian Journal of Earth Sciences, 42: 187-204.
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Van Romondt Verschoor, K., 1974. Paleobotany of the Tertiary (Early Middle Eocene) McAbee Beds, British Columbia, Graduate Thesis, University of Calgary.
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