Roosevelt and Conservation

They Called the Land Inexhaustible. He Knew Better.

Yosemite Valley with El Capitan and Half Dome seen from Tunnel View
National Parks

Doubling the Park System

Roosevelt believed the country’s grandest places — Crater Lake, Mesa Verde, the valleys of the Yellowstone — belonged to every American, and he used the presidency to keep them that way.

Theodore Roosevelt standing before a giant sequoia
National Forests

From 43 Million to 150 Million Acres

Working with Gifford Pinchot, Roosevelt more than tripled the nation’s forest reserves — and turned a land-office afterthought into a professional Forest Service.

The Grizzly Giant, a giant sequoia in Yosemite's Mariposa Grove
The Midnight Forests

16 Million Acres with a Signature

In 1907, Congress moved to strip the president’s power to create forest reserves. In the days before the bill took effect, Roosevelt and Pinchot proclaimed sixteen million more acres of forest — and then he signed the bill.

Key Facts

National parksFive established — doubling the park system
National forestsExpanded from 43 million to 150 million acres
U.S. Forest ServiceCreated 1905, under Chief Forester Gifford Pinchot
National monumentsEighteen proclaimed, beginning with Devils Tower (1906)
Antiquities ActSigned June 8, 1906
Federal bird reservesFifty-one, beginning with Pelican Island (1903)
Newlands Reclamation Act1902 — federal irrigation for the arid West
The “midnight forests”Sixteen million acres proclaimed in 1907
Yosemite with John MuirThree nights camping, May 1903
Governors’ ConferenceThe White House, May 1908
Land protected in allRoughly 230 million acres
Devils Tower rising above the Wyoming plains
National Monuments

Eighteen Places, Starting with Devils Tower

The Antiquities Act let a president protect land with a proclamation. Roosevelt used it eighteen times — Devils Tower first, and, most audaciously, the Grand Canyon.

The cliff dwellings of Cliff Palace at Mesa Verde
Antiquities Act

Roosevelt’s Conservation Superpower

Written to stop looters ransacking the ancient ruins of the Southwest, the 1906 act handed the president a power no one quite foresaw — and no president used it like Roosevelt.

A snowy egret displaying its breeding plumes
Federal Bird Reserves

Fifty-One Reserves, Starting with the Pelicans

In 1903, Roosevelt asked whether any law prevented him from declaring Florida’s Pelican Island a federal bird reservation. No law did. He declared it — and then did it fifty more times.

Gifford Pinchot and Theodore Roosevelt talking on a boat deck
Gifford Pinchot

The Chief Forester

America’s first professionally trained forester became Roosevelt’s indispensable partner — the architect who turned conservation from an impulse into a system.

Theodore Roosevelt and John Muir at Glacier Point in Yosemite
Camping with John Muir

Three Nights in Yosemite

In May 1903, the president slipped his security detail to camp under the sequoias with a white-bearded prophet of the wild — and called it the grandest day of his life.

Derricks and stonemasons building the foundations of Roosevelt Dam on the Salt River, Arizona
The Reclamation Act

Water for the Arid West

The Newlands Reclamation Act of 1902 put the federal government into the dam-building business — turning rivers like Arizona’s Salt into farms, towns, and a new western economy.

Group portrait of the 1908 Conference of Governors on Conservation
The Governors' Conference

The White House, May 1908

Every governor, summoned to the White House for a single subject: the nation’s natural resources. Nothing like it had ever happened — and conservation became a national movement.