Pinnacles is the nation’s fifty-ninth full-fledged national park. Twenty-five of our fifty-nine national parks, totaling 39.6 million acres, were first seeded by the establishment of a presidentially proclaimed national monument. Fourteen of these monumental twenty-five were established from more than one national monument proclamation, in that national monuments were expanded by later presidents.

There is no question that an Act of Congress can eliminate, shrink, or weaken a national monument proclaimed by a president pursuant to authority granted by Congress. What Congress giveth, Congress can taketh away.

The purposes and boundaries of Oregon’s Malheur National Wildlife Refuge can only be divined by examining at least a dozen acts of Congress, presidential actions, and administrative decisions.

Pelican Island in the Indian River Lagoon in Florida was the home to an extraordinary number of native birds, many of which were threatened by plume hunters meeting the hot market for feathers (and even whole birds) for women’s hats.