The United (Watershed) States of America

What if the great adventurer and geographer John Wesley Powell had his way: That as the western states were brought into the union their shape would be dictated by watershed rather than political boundary? This blog - and map - depict this scenario.

1 minute read

October 4, 2013, 12:00 PM PDT

By JohnLavey


"This story begins with John Wesley Powell, the great one-armed adventurer and geologist. He was made famous for his successful runs through the Colorado River in 1869 and 1872. But perhaps his most important legacy rests in a lesser known deed: Proposing in 1879 that as the western states were brought into the union they be formed around watersheds, rather than arbitrary political boundaries," writes planner John Lavey.

"What if the western states were formed around watershed as Powell envisioned? What would that look like and could we speculate on what that might mean for the functioning of modern communities? And since we’re going down that road, what if all of the American states were based around principal watershed, from coast to coast – something even Powell didn’t consider?"

This piece, which originally appeared on the Community Builders network, examines the implications of such a scenario, and gives readers a view into what the "Watershed States" might look like via a map created by Lavey.

Thursday, September 26, 2013 in Community Builders

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Silhouette of man holding on to back of bicycle ridden by woman with Eiffel Tower in background.

Paris Bike Boom Leads to Steep Drop in Air Pollution

The French city’s air quality has improved dramatically in the past 20 years, coinciding with a growth in cycling.

April 14 - Momentum Magazine

Multifamily housing under construction.

Why Housing Costs More to Build in California Than in Texas

Hard costs like labor and materials combined with ‘soft’ costs such as permitting make building in the San Francisco Bay Area almost three times as costly as in Texas cities.

April 14 - San Francisco Chronicle

Western coyote looking at camera in grassy field.

San Diego County Sees a Rise in Urban Coyotes

San Diego County experiences a rise in urban coyotes, as sightings become prevalent throughout its urban neighbourhoods and surrounding areas.

April 14 - Fox 5