Dinosaur Provincial Park

Listen for a moment. Wind moves across the prairie grass behind you, and then the land simply falls away. Below lies a maze of grey, tan, and rust-coloured hills. Some are smooth as poured clay. Others rise as strange columns with flat stone caps. Underfoot, the ground crunches with small pebbles and dried mud that cracks like old paint. This is the badlands of the Red Deer River valley, in southeastern Alberta. And under your feet lies one of the richest dinosaur graveyards ever found on Earth.

The contrast is the first surprise. You arrive across flat farmland and ranch country, where grain fields and pastures stretch to the horizon. Nothing warns you. Then the road drops into the valley, and the world changes in seconds. Geologists call this kind of landscape badlands. The name comes from early travellers, who found it very hard to cross. There is little shade and little water. The slopes are steep and crumbling. Yet for scientists, this harsh ground is a gift.

To understand why, imagine this place around seventy-five million years ago, in the Late Cretaceous period — the final age of the dinosaurs. There were no dry hills here then. This was a warm, low coastal plain. Rivers wound toward a great inland sea that once split North America in two. The land was green and wet, with swamps, forests, and wide river channels. It was a crowded, busy world. Dinosaurs, crocodile relatives, turtles, fish, and early mammals all lived side by side.

When animals died near those rivers, floods often buried them quickly in sand and mud. Over millions of years, that mud turned to rock, and the bones turned to stone. Then, at the end of the last Ice Age, huge volumes of meltwater carved this valley. Water cut straight down through the layers. Today, rain and wind keep wearing the hills away. Each spring storm can wash out a new bone. In a sense, the land is still being excavated — by the weather itself.

The numbers here are remarkable. Scientists have found dozens of dinosaur species within this small area, and many of them were new to science. Hundreds of specimens have come out of these hills, including many near-complete skeletons. You will hear names like Centrosaurus, a horned plant-eater, and duck-billed dinosaurs. There were armoured dinosaurs, and fierce meat-eaters related to Tyrannosaurus. Few places anywhere show a single ancient ecosystem in such detail.

That is why UNESCO named this park a World Heritage Site in 1979. The decision recognised two things at once. The first is the fossil record, which is unmatched for this period of time. The second is the landscape itself. The badlands, the river, and the green ribbon of trees along the water form a natural scene of rare beauty. The park had already been protected by the province of Alberta since the 1950s.

Humans knew this valley long before the scientists arrived. It lies within the traditional lands of the Blackfoot peoples and their neighbours, who crossed these plains for countless generations. Large bones lying on the surface did not go unnoticed. Then, in the late nineteenth century, surveyors working for the Canadian government began to record fossils here. Word spread to museums in Canada and the United States.

What followed, in the early twentieth century, is often called the Great Canadian Dinosaur Rush. Rival collecting teams floated down the Red Deer River on flat-bottomed boats. They camped on sandbars and searched the slopes each day. One famous team worked for the American Museum of Natural History in New York. Another was led by the Sternberg family of fossil hunters, working for Canada. The competition was intense. Because of it, skeletons from this valley now stand in museums around the world. A visitor in London or New York may be looking at a neighbour of these hills.

Now look closely at the hills in front of you. They are made of stacked bands — pale sandstone, darker mudstone, and here and there a thin line of brown ironstone. Some grey clay contains bentonite, which formed from ancient volcanic ash. When it gets wet, it swells and becomes very slippery. When it dries, it cracks into a crust like popcorn. Watch for the hoodoos too. These are columns where a hard cap of rock protects the softer layers below from the rain.

Here is something many visitors miss. Not all of the park is open for free walking. Large parts form a protected natural preserve. You can only enter those areas with a guided tour or programme run by park staff. This rule protects the fossils from damage and theft. It also means that remote corners still hold bones that no one has touched for seventy-five million years. Collecting fossils is not allowed, so if you spot one, take a photo and leave it in place.

The valley is also very much alive today. Along the river, tall cottonwood trees create one of the few green, shady places in this dry country. Listen for birds in their branches. Mule deer move quietly through the coulees, the narrow side valleys. Coyotes may call at dusk. Low to the ground, look for prickly pear cactus, which flowers yellow in early summer. And be careful where you step. Prairie rattlesnakes live here. They usually avoid people, but stay on the trails and give them space.

There is human history from the ranching era too. Inside the park stands a small log cabin that belonged to John Ware. He was a formerly enslaved man from the American South who became one of Alberta's best-known early cowboys and ranchers. Locals still tell stories of his strength and his skill with horses. His cabin was moved into the park, and it adds a quieter chapter to this place — the story of the people who tried to make a living on this hard, open land.

Before you leave, stand still once more and look across the valley. Notice how the light changes the colours of the hills. In the morning, they look pale and soft. In the late afternoon, the bands glow orange and deep brown. Every slope you see is a page of stone, and the rain turns a few more pages each year. As you walk back toward the prairie, remember that the bones of an entire lost world are still resting in these hills — waiting quietly under your feet.