The arch stretches 50 feet atop a 500-foot high cliff overlooking a a valley and buttes of ancient red stones. Day hikers can see the view on the looping 0.5-mile Mesa Arch Trail.
To reach the trailhead, from the park’s Sky Visitor Center, drive 6.3 miles south. The parking lot is on the west/left side. Mesa Arch sits at the trail’s midpoint.
Here’s a video of the view through Mesa Arch:
Several other great trails offer intersting sights at Canyonlands National Park.
Learn more about national park day hiking trails in my Best Sights to See at America’s National Parks guidebook.