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Elevation from Custer to Boulder

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Elevation (ft)3,0003,8004,6005,4006,2007,000
Grade %-5-4-3-2-101234
Max elevation: 6346 ft / 1934 m
Min elevation: 3429 ft / 1045 m
Elevation change: 2916 ft / 889 m
Max grade: 3.6%
Min grade: -4.4%
Steepness score: 88 + 437 + 4015 + 11 = 4552
Distance: 337.66 mi / 543.41 km
Travel Time: 5 hours 23 mins

  Difficulty% Grade
 
Easiest<5%
 
Easy5-10%
 
Moderate10-15%
 
Difficult15-20%
 
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.

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If you're planning to drive in the winter and you want to avoid snow, check the road conditions from Custer to Boulder. You can also view a 3-D map of Custer elevation or Boulder 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 Custer and Boulder.

US
385
12 mi / 19 km
SD
89
15 mi / 24 km
US
18
137 mi / 220 km
US
85
76 mi / 122 km
I-2576 mi / 122 km
CO
119
18 mi / 29 km

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