To celebrate its 100th birthday, the National Park Service got lots of people on Thursday to gather on the Mall to make a living arrowhead to honor its history.

On August 25, the National Park Service wants to celebrate its centennial on the National Mall, by inviting 1,000 people to create the largest version of its emblem. “We’re confident that nothing of ...

To kick off the bash, more than 1,000 people assembled on the National Mall to hold brown, green and white umbrellas to form the NPS' iconic arrowhead logo.

This combo of graphics provided the Glacier Range Riders and the National Parks Service show’s the Range Riders arrowhead logo, left, and the NPS’s arrowhead logo. The minor league baseball ...

A minor league baseball team in Montana is calling out the U.S. Department of Interior for “unwarranted and relentless” trademark claims in a battle over the use of an arrowhead logo ...

This combo of graphics provided the Glacier Range Riders and the National Parks Service show's the Range Riders arrowhead logo, left, and the NPS's arrowhead logo. The minor league baseball team in ...