The Great Plains¶

Extent: From the boreal edge of the Canadian prairies south through the Texas Panhandle and into the Chihuahuan Desert — roughly 500 million acres spanning the middle third of North America, east of the Rockies and west of the Eastern Woodlands.

Core watersheds: Missouri River, Platte River, Arkansas River, Red River, Republican River

Keystone species: American bison, black-tailed prairie dog, black-footed ferret, swift fox, burrowing owl, greater prairie-chicken, horned lark, short-horned lizard, pronghorn

The Place¶

Before the plow, the Great Plains were a sea.

Not water — grass. Tallgrass prairie in the east, where rainfall allowed stems to reach six feet by midsummer. Mixed-grass in the middle, a mosaic of big and little bluestem, sideoats grama, buffalo grass. Shortgrass in the west, where drought kept everything low and tight against the earth. The whole system stretched unbroken from the boreal forest edge in Saskatchewan south to where the grass thinned into desert scrub in Texas and New Mexico.

It was alive in a way that is nearly impossible to reconstruct from memory. Sixty million bison. Billions of prairie dogs in continent-spanning "towns" that functioned like cities of soil engineers. The predators that tracked them — grey wolves, grizzlies, pumas, coyotes — visible for miles in every direction across the open plain. Enormous flocks of migratory birds: whooping cranes, Eskimo curlews, passenger pigeons. The spring migration of pronghorn, the fastest land mammal in the Western Hemisphere, whose speed was evolved to outrun the American cheetah, now extinct.

Less than 4% of the original tallgrass prairie remains. It is the most destroyed major ecosystem in North America — more completely gone than the old-growth forests, the wetlands, the desert scrublands. Most of what remains is on the Flint Hills of Kansas, where the rocky soil frustrated the plow.

The Aquifer¶

Beneath the Great Plains lies the Ogallala Aquifer — one of the largest freshwater aquifers in the world, stretching from South Dakota to the Texas Panhandle. Eight states draw from it. It supplies roughly 30% of all groundwater used for irrigation in the United States.

It is being drawn down at a rate roughly 10 to 40 times faster than it naturally recharges.

The Ogallala formed over millions of years as Rocky Mountain meltwater percolated east and downward into the sediments. It does not significantly recharge from current rainfall — in much of the Texas Panhandle, annual recharge is measured in fractions of an inch while withdrawals run to tens of feet per year. At current rates, large portions of the southern Ogallala will be economically exhausted within decades. ⚠️ Depletion rates and projections vary significantly by region; verify current USGS data.

This is not an abstract future problem. Kansas, Nebraska, and Texas have all established groundwater conservation districts specifically because Ogallala depletion is already causing farm failures and community collapse in some areas. The town of Tribune, Kansas, population around 700, is one of dozens watching its aquifer approach the point of no return.

The Prairie Dog Economy¶

Prairie dogs are not a pest species. They are an ecological keystone — the foundation of an entire web of Great Plains life.

Their colonies — historically covering hundreds of millions of acres — serve multiple functions:

Their burrows aerate the soil, improving water infiltration and root growth
Their grazing creates short-grass patches preferred by bison, pronghorn, and dozens of bird species
Their bodies are food for ferruginous hawks, golden eagles, badgers, swift foxes, and burrowing owls, who nest in abandoned burrows
They are the only food source of the black-footed ferret — North America's most endangered mammal

Ranchers poisoned prairie dogs for most of the 20th century, viewing them as competition for cattle forage. The result was not just the near-extinction of the ferret (reduced to 18 animals by 1987) but the ecological impoverishment of the whole system. Where prairie dog colonies have been reestablished, the associated species — ferrets, hawks, owls, foxes — have returned within a few years. The land remembers.

The Bison Question¶

The American bison once numbered somewhere between 30 and 60 million animals. By 1889, fewer than 1,100 remained. The slaughter — organized, deliberate, and explicitly connected to the U.S. Army's strategy of destroying the economic base of the Plains nations — was one of the fastest megafaunal collapses in history.

Today roughly 500,000 bison exist in North America, but only about 20,000 are considered truly wild or conservation herds. The rest are managed as livestock, often crossed with cattle genetics.

Bison are not simply big cattle. They move differently — continuously, across vast ranges — and that movement is the mechanism by which they renew the prairie. Their wallowing creates depressions that collect water and support different plant communities. Their grazing is uneven and patchy, creating habitat heterogeneity that a field grazed by stationary cattle never achieves. The ecological return of bison to significant portions of the Plains — a proposal that has been studied seriously since the Pippins' "Buffalo Commons" proposal in 1987 — remains bioregionally logical and politically explosive.

The People¶

The Great Plains were home to dozens of Indigenous nations, most organized around the bison. The Lakota, Cheyenne, Arapaho, Comanche, Kiowa, Osage, and many others built civilizations calibrated to the ecology of the grassland — following the bison herds, burning to direct their movement, cultivating specific plants in river bottoms.

The Plains nations were not "pre-agricultural" in the sense of being unsophisticated. They were practitioners of an ecological management system refined over thousands of years. Fire was their primary tool — regular burning that rejuvenated the grass, excluded the woody species that would otherwise encroach from the east, and maintained the open landscape that bison preferred.

Their removal — through war, forced relocation, and the deliberate extermination of the bison — is inseparable from the current state of the Great Plains ecosystem. Reestablishing a bioregional relationship with the Plains means engaging honestly with that history.

Wind and the New Extraction¶

The Great Plains contain some of the best wind energy resources on Earth — a geological gift that has made the region central to U.S. renewable energy buildout. Kansas, Oklahoma, Iowa, and Texas regularly lead the nation in wind generation as a percentage of electricity consumed.

Wind is not extraction in the sense that coal is. But it is also not without ecological cost on the Plains. Industrial wind turbines kill large numbers of raptors and bats — particularly problematic in a grassland ecosystem where predator pressure already far below historical levels. The footprint of turbines, access roads, and transmission lines fragments grassland habitat that is already highly fragmented.

The question bioregionalism asks is not "wind energy: yes or no?" — it is "what scale, what siting, and whose governance?" A wind farm designed by people who live in the watershed it occupies, and governed by bioregional institutions accountable to that place, would look different from one designed by a utility headquartered two states away.

What to Know Here¶

If you live on the Great Plains:

Find your watershed — the Missouri, Platte, and Arkansas systems each have distinct characters
The soil under your feet is among the most productive on Earth; it took thousands of years to build and can be lost in a generation of poor management
If you're above the Ogallala, the water you use is old — ancient, non-renewable on any human timescale — treat it as such
Prairie remnants are rare and irreplaceable; even small patches matter enormously for biodiversity
The Great Plains wind is real and genuinely valuable — but look at how the projects are sited