Steep Grades - UT
UT Route 261 in Utah from Mexican Hat to Cedar Mesa, UT - It's recommended that vehicles over 28-feet long or over 10,000 pounds don't attempt to traverse this road. The 10 percent grade is really, really steep.
Hwy 89 going north from Mt Camel Junction, UT - steady climb of about 3,000 ft.
UT-148 and 143 route in UT from the State Route 14 to Parowan in northern Utah. Steep hill and grades. Avoid if you can
Submitted by: James Shumway