A cowboy accidentally found ancient bones in the New Mexico desert that completely upended America's archaeological beliefs.

A cowboy accidentally found ancient bones in the New Mexico desert that completely upended America's archaeological beliefs.

A flood, a cowboy, and the bones that changed history

On a regular late summer day in 1908, a storm carved open a New Mexico arroyo and exposed bones far larger than any living bison. However, a curious cowboy noticed the anomaly first, long before scholars cared, in a discovery that changed accepted historical narratives.

A

Advertisement

A Storm That Tore Open The New Mexico Badlands

A violent cloudburst struck Folsom, New Mexico, in late August 1908, sending a wall of water through the narrow Dry Cimarron valley. The flood destroyed homes and carved deep cuts into surrounding arroyos. Those freshly exposed layers would uncover evidence that quietly waited beneath the surface for millennia.

File:Cimarron River valley.jpgAlan Gross, Wikimedia Commons

Advertisement

To Reveal Something No One Expected

When the water receded, locals noticed new scars in Wild Horse Arroyo. The flood had sliced through ancient sediments, exposing layers rarely seen by anyone. Embedded in the freshly carved wall were massive bones far larger than those of any modern bison. Could it be an extinct creature that once roamed the region?

File:Folsom, New Mexico flood 1908.jpgUnknown authorUnknown author, Wikimedia Commons

Advertisement

Then A Cowboy Rode Out To Inspect The Damage

George McJunkin, foreman of the Crowfoot Ranch, rode out after the storm to examine downed fences and damaged grazing areas. His route led through the newly cut arroyo. While scanning the debris, he spotted bones protruding from the exposed bank. Their size and depth suggest they belonged to a long-vanished animal.

File:George McJunkin photo.jpgUnknown authorUnknown author, Wikimedia Commons

Advertisement

How A Self-Taught Naturalist Learned To Read The Land

Born into slavery and later becoming a respected cowboy, McJunkin taught himself to read, study languages, and understand natural history. Years of ranch work sharpened his ability to interpret soil and animal remains. That knowledge helped him recognize the significance of the oversized bones long before scientists arrived.

File:The history of slavery and the slave trade, ancient and modern - the forms of slavery that prevailed in ancient nations, particularly in Greece and Rome; the African slave trade and the political (14804912403).jpgInternet Archive Book Images, Wikimedia Commons

Advertisement

He Wondered What Kind Of Animal This Could Be

Standing before the scattered remains, McJunkin questioned what creature produced bones of such scale. Local knowledge offered no match. Because he frequently collected unusual specimens across the plains, he realized this discovery demanded scientific attention. The possibility of encountering a vanished species sparked his determination to learn more about the site.

File:Folsom archeological site Wild horse Arroyo before 1922.jpgUnknown authorUnknown author, Wikimedia Commons

Advertisement

However, His Efforts To Draw Attention Went Nowhere

McJunkin gathered samples and attempted to contact museum representatives, hoping someone would investigate. His letters and conversations raised curiosity but produced no action. Limited resources and skepticism toward frontier discoveries slowed interest. The site remained untouched and left its deeper story trapped beneath layers of eroded sediment.

cottonbro studiocottonbro studio, Pexels

Advertisement

Why Letters To Scientists Failed To Spark Interest

At the time, many scholars believed humans had not lived in North America during the late Ice Age, so few expected ancient remains tied to early people. Specimens from remote ranchlands rarely attracted immediate attention. Without photographs or institutional backing, McJunkin’s appeals struggled to overcome prevailing assumptions within academic circles.

File:Scholar reading in study.jpgDutch School, Wikimedia Commons

Advertisement

But New Eyes Finally Returned To The Wild Horse Arroyo

A small group of collectors and researchers revisited the arroyo in the 1920s, bringing fresh curiosity to the site McJunkin long championed. They noticed the same oversized bones in ancient sediments and recognized the location’s potential. Their observations finally set the groundwork for a formal scientific investigation.

File:A researcher working with delicate resource at The National Archives.jpgThe National Archives (UK), Wikimedia Commons

Advertisement
F

History's most fascinating stories and darkest secrets, delivered to your inbox daily.

Thank you!
Error, please try again.

And The First Test Digs Hinted At Something Deeper

Preliminary examinations revealed tightly packed bone layers rather than scattered remains, suggesting an organized deposit rather than random erosion. The density and preservation indicated that the animals died together. These early findings hinted that the site might contain evidence of behaviors or circumstances not yet understood.

File:Archaeological field work.jpgMariyaShubina, Wikimedia Commons

Advertisement

A Full Excavation Took Place In 1926

Under the direction of researchers associated with the Denver Museum, systematic excavations started in 1926. Careful mapping and controlled digging replaced earlier informal visits. The team documented bone positions and artifact locations to create a scientific record that would allow the site’s age and significance to be interpreted accurately.

File:Denver Museum of Nature & Science.JPGNo machine-readable author provided. MisterHand~commonswiki assumed (based on copyright claims)., Wikimedia Commons

Advertisement

And Ancient Skeletons Started To Take Shape

As excavation expanded, partial and complete skeletons of Bison Antiquus emerged from the stratified sediments. Many were found in close proximity, which suggests a single event or concentrated hunting episode. Their arrangement and depth provided valuable clues about Pleistocene environments and the conditions that preserved them for thousands of years. 

File:American Bison (24595316054).jpgUSFWS Mountain-Prairie, Wikimedia Commons

Advertisement

A Stone Point Appeared Where No One Expected It

During the careful removal of ribs from one bison, excavators uncovered a finely made stone point lodged between the bones. Its precise placement indicated it entered the animal during life rather than through later disturbance. That single artifact revealed an unmistakable connection between humans and Ice Age megafauna at the site.

File:Archeologist P4280244.jpgChris Light, Wikimedia Commons

Advertisement

One Spearpoint Challenged The Accepted Human Timeline

The discovery of a fluted spearpoint within the bison’s ribcage directly contradicted the prevailing belief that humans arrived in North America only a few thousand years ago. Its presence in clearly ancient strata demonstrated that people hunted Ice Age animals. It forced scholars to reconsider long-held assumptions about the continent’s earliest inhabitants.

File:Spear tips (fluted), Late Paleo Early Archaic Indians, 8000-6000 BC, stone - Wisconsin Historical Museum - DSC03426.JPGDaderot, Wikimedia Commons

Advertisement

Scholars Argued Over What The Evidence Really Meant

Some researchers welcomed the find as decisive proof, while others hesitated, questioning context or excavation accuracy. The debate reflected decades of disagreement about human antiquity in the Americas. Carefully documented fieldwork eventually satisfied critics and showed that the artifact and bones were undeniably part of the same ancient event.

File:Bernard Trebacz Argument of the scholars.jpegBernard Trebacz (1869-1941), Wikimedia Commons

Advertisement

And Proof Emerged That Humans Hunted Ice Age Giants

Further excavation uncovered more fluted points consistent with early Paleoindian technology, and it confirmed that the embedded point was not an isolated anomaly. These discoveries established that highly skilled hunters targeted Bison Antiquus during the late Pleistocene, revealing a sophisticated tradition rather than a single moment of happenstance within the archaeological record.

File:Archaeologist at Work (5734913492).jpgSon of Groucho from Scotland, Wikimedia Commons

Advertisement

With A New Story Of Early North American Hunters

The Folsom findings shed light on hunters capable of crafting precise stone tools and coordinating successful hunts against massive animals. Evidence from the site suggested organized groups and deep knowledge of migrating herds. This understanding reshaped views of early societies and presented them as adaptive, resourceful communities rather than primitive wanderers.

File:Clovis spearpoints - Cleveland Museum of Natural History.jpgTim Evanson, Wikimedia Commons

Advertisement

How Folsom Communities Adapted To The Shifting Ice Age 

Folsom groups lived during a period marked by colder climates and migrating herds. They adjusted constantly, moving across wide territories as resources changed. Their flexible camps and seasonal travel patterns allowed them to survive unpredictable environments, which demonstrates a strong understanding of terrain in late Pleistocene North America.

File:Paleontological landscape painting, White Sands National Park, United States.jpguncredited National Park Service (NPS) artist, Wikimedia Commons

Advertisement

A Revised Timeline Reshaped American Archaeology

Once the Folsom evidence gained acceptance, the estimated timeline for human presence in North America moved dramatically backward into the late Ice Age. The discovery encouraged broader investigations of ancient sites and opened new research questions. It marked a turning point that shifted archaeological focus toward deeper, older layers across the continent.

File:Archaeological excavations.jpgGalina Fomina, Wikimedia Commons

Advertisement

What Daily Life May Have Looked Like For Folsom Families

Folsom people likely balanced hunting with food processing, hide preparation, and tool maintenance. Campsites suggest varied tasks rather than single-purpose stops. Children probably learned toolmaking by observing adults, while elders offered knowledge about terrain and seasons. These daily routines created a rhythm that made survival possible across changing environments.

File:Grand Canyon National Park, Camping, IMG 2691,.jpgOmarG1202, Wikimedia Commons

The Trail From Folsom To The Clovis Breakthrough

Momentum from the Folsom discovery encouraged archaeologists to search older deposits across the Plains and Southwest. Those efforts eventually revealed the deeper Clovis layer, containing even earlier fluted points. Folsom provided the essential proof of human antiquity that cleared the way for identifying a culture that predated it by centuries.

File:Clovis point, 11500-9000 BC, Sevier County, Utah, chert - Natural History Museum of Utah - DSC07376.JPGDaderot, Wikimedia Commons

Advertisement

The Man Behind The Discovery Faded Into Obscurity

Despite sparking interest in a site that transformed American archaeology, George McJunkin received little recognition during his lifetime or immediately afterward. His death preceded the excavation, which left his role largely unknown. For decades, publications described the discovery without mentioning the cowboy whose observations brought the site to scientific attention.

File:Archaeological excavation.jpgblogspot, Wikimedia Commons

Advertisement

Researchers Began Reexamining His Role

Later historians and archaeologists revisited early accounts and local testimonies that highlighted McJunkin’s central contribution. Documentation showed his persistence in contacting institutions and guiding visitors to the site. This reassessment highlighted how his curiosity and field knowledge shaped one of the most important archaeological discoveries in the United States.

File:New Mexico officials discuss research collaboration with Army (25962079481).jpgU.S. Army CCDC from Aberdeen Proving Ground, MD, USA, Wikimedia Commons

Advertisement

Later Technologies Uncovered Hidden Clues Beneath The Surface

Decades after the original excavation, improved analytical tools allowed scientists to reexamine materials from Folsom. Microscopic wear studies and sediment analyses confirmed behavioral clues impossible to detect in the 1920s. These advances showed how each generation of research changed the discovery into a continually expanding scientific record.

File:Researcher looking through microscope.jpgRhoda Baer (Photographer), Wikimedia Commons

Advertisement

Why Mcjunkin’s Story Matters Far Beyond Archaeology

McJunkin’s experience illustrates how scientific progress can hinge on individuals whose insights go unrecognized due to social or institutional barriers. His story encourages broader conversations about whose voices are acknowledged. It also demonstrates how valuable field expertise and lived experience can be in uncovering significant historical evidence.

fauxelsfauxels, Pexels

Advertisement

How A Cowboy’s Curiosity Changed The Continent’s Past

The discovery at Folsom reframed the understanding of early North American history, placing humans deep within the Pleistocene. McJunkin’s determination to investigate unusual bones exposed a timeline previously dismissed by scholars. His careful observations ultimately shifted archaeological inquiry and opened a deeper record of ancient communities across the continent.

File:Thomas Wyck - A scholar in his Study - Google Art Project.jpgThomas Wijck, Wikimedia Commons

Advertisement

More from Factinate

More from Factinate




Dear reader,


Want to tell us to write facts on a topic? We’re always looking for your input! Please reach out to us to let us know what you’re interested in reading. Your suggestions can be as general or specific as you like, from “Life” to “Compact Cars and Trucks” to “A Subspecies of Capybara Called Hydrochoerus Isthmius.” We’ll get our writers on it because we want to create articles on the topics you’re interested in. Please submit feedback to hello@factinate.com. Thanks for your time!


Do you question the accuracy of a fact you just read? At Factinate, we’re dedicated to getting things right. Our credibility is the turbo-charged engine of our success. We want our readers to trust us. Our editors are instructed to fact check thoroughly, including finding at least three references for each fact. However, despite our best efforts, we sometimes miss the mark. When we do, we depend on our loyal, helpful readers to point out how we can do better. Please let us know if a fact we’ve published is inaccurate (or even if you just suspect it’s inaccurate) by reaching out to us at hello@factinate.com. Thanks for your help!


Warmest regards,



The Factinate team




Want to learn something new every day?

Join thousands of others and start your morning with our Fact Of The Day newsletter.

Thank you!

Error, please try again.