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Elevation from Hardin (Montana) to Keystone (South Dakota)
Max elevation: 5050 ft / 1539 m
Min elevation: 2885 ft / 879 m
Elevation change: 2165 ft / 660 m
Min elevation: 2885 ft / 879 m
Elevation change: 2165 ft / 660 m
Max grade: 6.3%
Min grade: -5.6%
Steepness score: 64 + 626 + 6124 + 9 = 6823
Min grade: -5.6%
Steepness score: 64 + 626 + 6124 + 9 = 6823
Distance: 294.26 mi / 473.57 km
Travel Time: 4 hours 57 mins
Travel Time: 4 hours 57 mins
| Difficulty | % Grade | |
| Easiest | <5% | |
| Easy | 5-10% | |
| Moderate | 10-15% | |
| Difficult | 15-20% | |
| Very Difficult | >20% |
Make sure you double check everything if you're planning a road trip.
Elevation data comes from different sources and may not reflect true
driving conditions, so talk to other RVers if you're concerned about
steep grades.
Note that this route shows high grade, which may be due to a bridge or unusual land feature. Land elevation may be different than road elevation, so always check any spikes in elevation or grade. If you're planning to drive in the winter and you want to avoid snow, check the road conditions from Hardin (Montana) to Keystone (South Dakota). You can also view a 3-D map of Hardin (Montana) elevation or Keystone (South Dakota) elevation.
These are some of the possible highways along this route. Use the GPS in your car to verify all driving directions. If you're looking for campgrounds along the way, search for RV parks between Hardin (Montana) and Keystone (South Dakota).
 | 14 mi / 23 km |
US 212 | 200 mi / 322 km |
SD 34 | 19 mi / 31 km |
| 34 mi / 55 km |
US 16 | 19 mi / 31 km |
