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.


Mauna Kea Profile


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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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.