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.

The stunt was completed just before 11 a.m. and the world’s largest National Park Service arrowhead was created. Cameras were on hand to document the achievement from above.

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 ...