• National Mall and Memorial Parks Flag Flying

    National Mall & Memorial Parks

    District of Columbia

There are park alerts in effect.
show Alerts »

  • Washington Monument Closed

    The Washington Monument is closed for repairs due to an earthquake on August 23, 2011. More »

Ranger Journal

About This Blog

Explore the history, culture, science, nature, architecture, and stories that link the iconic spaces in the National Mall and Memorial Parks to our nation and its people. The articles collected here are produced by NPS staff at the National Mall and Memorial Parks.

Acid Rain's Slow Dissolve

May 22, 2012 Posted by: Megan Nortrup, Science Communicator, National Capital Region

Remember acid rain? Although pollution levels have improved, it is still here, and you can see evidence of acid rain’s effects in several spots on the National Mall.

Science, Thomas Jefferson Memorial, Ulysses S. Grant Memorial, Acid Rain, Pollution, Nature
 

Did You Know?

Arrival of Cherry Trees in 1912

That the cherry trees arrived in 1912 as a gift from Japan?  Follow the link to find out more about the history of the cherry trees in D.C. More...