Clovis Culture: The Ice Age Hunters of Ancient North America

The Clovis culture is the name archaeologists give to a group of Ice Age hunter-gatherers who lived across North America roughly 13,000 years ago. They are best known for their finely made, fluted stone spear points, found from the Pacific coast to the Atlantic seaboard and from southern Canada into Mexico. For much of the 20th century Clovis was believed to represent the very first people in the Americas, an idea known as “Clovis first” that later discoveries have overturned.

Discovery at Blackwater Draw

The culture takes its name from the town of Clovis in eastern New Mexico. Nearby lies Blackwater Draw, a dried-up stream channel and ancient pond basin where, in the late 1920s and early 1930s, local collectors noticed stone tools eroding out of the ground alongside large animal bones.

In 1933 Edgar B. Howard of the University of Pennsylvania began systematic excavations there, joined by the young archaeologist John L. Cotter. They found large lanceolate spear points lying with the bones of mammoths, beneath layers containing smaller, more delicate Folsom points associated with an extinct form of bison. The stratigraphy showed that the Clovis-type points were older.

The discovery built on the Folsom site in northeastern New Mexico, where in 1927 a spear point had been found embedded between the ribs of an extinct bison. Folsom proved that people had lived in North America during the Ice Age; Blackwater Draw showed that an even earlier hunting tradition had existed.

The Clovis point

The Clovis point is the defining artefact of the culture. It is a bifacial point, meaning it was flaked on both faces, with parallel or slightly convex sides and a concave base. Most are between about 4 and 15 centimetres long, although some cached examples are larger.

Its signature feature is the flute: a shallow channel created by striking one or more long flakes from the base up towards the tip. Fluting thinned the base so it could be slotted into a split shaft or a bone foreshaft and bound in place. Knappers also used a demanding technique called overshot flaking, in which flakes were driven right across the face of the point.

Clovis makers preferred high-quality stone such as chert, chalcedony, jasper and obsidian. Chemical sourcing shows that some points were made from stone carried hundreds of kilometres from its quarry, a sign of highly mobile groups who planned their movements around reliable toolstone.

Life and hunting

The Clovis people were hunter-gatherers who moved across a landscape very different from today’s. Late Ice Age North America supported mammoths, mastodons, horses, camels, giant ground sloths and large bison, alongside the predators that hunted them, such as the sabre-toothed cat Smilodon.

Several famous sites in the American Southwest record Clovis hunters killing mammoths, among them Murray Springs, Lehner and Naco in Arizona. In Sonora, Mexico, the El Fin del Mundo site preserves evidence of the hunting of gomphotheres, elephant-like relatives of mastodons. Yet Clovis people also ate smaller animals and plants, and archaeologists now caution against picturing them only as big-game specialists.

Other sites reveal different aspects of Clovis life. The Gault site in central Texas has yielded hundreds of thousands of artefacts from a long-used campsite and quarry. Caches of unusually large points and tools, such as the East Wenatchee (Richey-Roberts) cache in Washington State, may have been stockpiles or ritual deposits.

The Anzick site in Montana contains the only known Clovis burial: a young child interred with more than 100 stone and antler artefacts, many coated in red ochre. In 2014 a team led by Morten Rasmussen and Eske Willerslev published the child’s genome, showing that the Anzick child belonged to a population directly ancestral to many present-day Native Americans. The remains were reburied in 2014 in a ceremony involving local tribal representatives.

Dating the culture

Early radiocarbon dates suggested that Clovis lasted from roughly 13,500 to 12,900 calendar years ago. In 2007 Michael R. Waters and Thomas W. Stafford Jr. re-dated key sites with improved techniques and proposed a much shorter span of about 13,250 to 12,800 years ago, perhaps only 200 to 450 years.

A further study by Waters and colleagues in 2020 placed Clovis at about 13,050 to 12,750 years ago, roughly 11,100 to 10,800 BC. Either way, the culture appears to have spread across a vast area in a remarkably short time, which may reflect the rapid adoption of a successful technology by people who were already present.

Clovis was succeeded by regional traditions, including Folsom on the Great Plains. Its end roughly coincided with the onset of the Younger Dryas, a sharp return to near-glacial cold about 12,900 years ago.

The rise and fall of “Clovis first”

By the 1960s many archaeologists, notably C. Vance Haynes, argued that Clovis people were the first humans in the Americas. The model held that hunters crossed the Bering Land Bridge from Siberia, travelled south through an ice-free corridor between the Laurentide and Cordilleran ice sheets, and spread rapidly across the continents. The ecologist Paul S. Martin linked this sudden arrival to the extinction of the American megafauna in his “overkill” hypothesis.

For decades, claims of older sites were rejected, often with good reason, because of uncertain dating or doubtful artefacts. That changed with Monte Verde in southern Chile. Excavated by Tom Dillehay from the late 1970s, it revealed huts, wooden stakes, plant remains and stone tools dated to about 14,500 years ago. In 1997 a group of leading archaeologists, including Haynes, visited the site and accepted its age, an event widely seen as the end of the Clovis first consensus.

Further pre-Clovis evidence has since accumulated:

• Meadowcroft Rockshelter, Pennsylvania: occupation layers claimed to date back 16,000 years or more, excavated by James Adovasio.
• Paisley Caves, Oregon: human coprolites (preserved faeces) dated to about 14,300 years ago.
• Debra L. Friedkin site, Texas: thousands of artefacts beneath a Clovis layer, dated to about 15,500 years ago.
• Page-Ladson, Florida: stone tools and butchered mastodon bones about 14,550 years old.
• White Sands, New Mexico: human footprints dated to roughly 23,000 to 21,000 years ago, a finding still debated but supported by several dating methods.

Genetic studies also suggest that the ancestors of Native Americans separated from East Asian populations well before Clovis times. Many researchers now favour an early migration along the Pacific coast, since the inland ice-free corridor may not have become habitable until about 13,000 years ago. The broader story is covered in peopling of the Americas.

Myths and facts

Myth: Clovis people were the first Americans. Sites such as Monte Verde, Paisley Caves and Page-Ladson show that people were in the Americas at least one to two thousand years earlier, and possibly much earlier.

Myth: Clovis came from Europe. The so-called Solutrean hypothesis proposed that Clovis technology derived from Ice Age France and Spain via the North Atlantic ice. Most archaeologists reject it, citing a gap of several thousand years between the cultures, and the Anzick genome shows a clear Asian-related ancestry.

Fact: Clovis was widespread but brief. Clovis-style points are found in almost every part of the contiguous United States, yet the culture lasted only a few centuries at most.

By the numbers

Timeline

• c. 11,100-10,800 BC: Approximate span of the Clovis culture according to recent radiocarbon studies.
• c. 10,900 BC: Onset of the Younger Dryas cold period, around the time Clovis gives way to regional traditions such as Folsom.
• 1927: A spear point is found among the ribs of an extinct bison at Folsom, New Mexico, proving people lived in Ice Age North America.
• 1933: Edgar B. Howard begins excavations at Blackwater Draw near Clovis, New Mexico, finding fluted points with mammoth bones.
• 1968: The Anzick Clovis burial is discovered by construction workers in Montana.
• 1997: Archaeologists including C. Vance Haynes visit Monte Verde and accept its pre-Clovis age.
• 2007: Waters and Stafford publish a revised, shorter chronology for Clovis.
• 2014: The genome of the Anzick child links Clovis people to living Native Americans.

Why it matters

Clovis remains one of the most recognisable archaeological cultures in the world, and its points are a high point of Stone Age craftsmanship. The long debate over “Clovis first” transformed how archaeologists study the peopling of the Americas, showing that the first arrivals came earlier and by more varied routes than once thought. Clovis is now understood not as the beginning of the American story, but as a remarkable chapter within it.