https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/3582111![Tire course](https://images.rawpixel.com/image_social_landscape/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDIyLTA0L2ZsNDQwMTAzNTIzNS1pbWFnZS1rcWJzbW8zbi5qcGc.jpg)
![Tire course](https://images.rawpixel.com/image_social_landscape/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDIyLTA0L2ZsNDQwMTAzNTIzNS1pbWFnZS1rcWJzbW8zbi5qcGc.jpg)
Tire course
Tire course
Participants racing in the 16th annual Swamp Romp, sponsored by the U.S. Marine Corps' Combat Logistics Battalion 3, maneuver through a tire obstacle at Marine Corps Base Hawaii, Kaneohe Bay, Hawaii, Feb. 20. The Swamp Romp is a five-mile, obstacle-laden course that includes mud, water, sand and flat ground. (U.S. Marine Corps photo by Lance Cpl. Alfredo V. Ferrer). Original public domain image from Flickr
Public DomainFree CCO U.S. Government image for Personal and Business use