Have other national monuments been re-designated as national parks?

Yes! The following National Monuments have been successfully re-designated from monuments to national parks. Pinnacles National Park is the most recent, officially re-designated with the full support of citizens in 2013. No city or county has ever attempted to revoke park status! Great Sands National Park and the Black Canyon of the Gunnison in Colorado were also re-designated as national parks within the last 15 years.

They include:

Biscayne NP, FL
Channel Islands NP, CA
The Grand Canyon NP, AZ
Great Basin NP, NV
Joshua Tree NP, CA
Arches NP, UT
Saguaro NP, AZ
Death Valley NP, CA
Black Canyon of the Gunnison NP, CO
Great Sand Dunes NP, CO
Pinnacles NP, CA
Mount St. Helens NP, WA

Learn more at: http://www.be.wvu.edu/phd_economics/pdf/April15.pdf

Welcome to Grand Valley Region Citizens for a National Park