Grosvenor Arch is a cool double sandstone arch in Utah's Grand Staircase–Escalante National Monument. It's named after Gilbert Hovey Grosvenor, a well-known figure at National Geographic. You can easily access it from Cottonwood Canyon Road and there are both benches and restrooms. The short trail all the way to the arch is also paved, making it accessible for everyone.
The drive via Cotton Wash Road is accessible to 2WD vehicles if its been dry. The road is impassable if wet or recent rain.