Mauna Kea
Hilo, United States of America
The Mauna Kea is a col with a length of 68.6 kilometer. This is a highest category (HC) col. It is located in Hilo, HI, United States of America. The average grade of this col is 6.2% with a maximum of 12.5%. The Mauna Kea ascents from 22 meter at the start, to 4.207 meter at the top, with a total of 4.184 ascending meters.
Profile
Facts
| Distance | 68.6 km |
| Elevation gain | 4184 m |
| Average grade | 6.2 % |
| Maximum grade | 12.5 % |
| Climb category | HC |
| Minimum elevation | 22 m |
| Maximum elevation | 4207 m |
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Description
This mammoth volcanic monster is renowned as the hardest climb on the planet. As if the sheer elevation wasn’t hard enough, the surface turns to powdery volcanic rock about five miles from the top, making that final stretch extremely slow going. One trip to the top equals nearly four Alpes d’Huez.