Fifty for 150: Rocky Mountain National Park established as 10th national park in 1915

Colorado became home to the country’s 10th national park when President Woodrow Wilson signed the Rocky Mountain National Park Act into law on Jan. 26, 1915. Rocky Mountain National Park spans more than 265,000 acres with elevation ranging from from 7,600 feet to 14,259 feet at the top of Longs Peak. Hundreds of miles of […]

By: Lindsey Toomer

Outlets: Colorado Newsline

Published: July 14, 2026

Words: 641

Last Updated: 1 week, 1 day ago

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Colorado became home to the country’s 10th national park when President Woodrow Wilson signed the Rocky Mountain National Park Act into law on Jan. 26, 1915.

This story is part of Colorado at 150. Each Fifty for 150 story focuses on an event that helped define Colorado over 150 years of statehood. Newsline is publishing one Fifty for 150 story every weekday in reverse chronological order until the sesquicentennial, …

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