Human Hundred: A Centennial Challenge

Six photographs of people cycling, hiking, snowshoeing, and skiing

NPS Photos by Kent Miller, Charlotte Bodak, Alex Van Der Styuf, and Jay Elhard

green circle with a stylized drawing of a mountain and the words denali national park 2016 human hundred challenge
The sticker for participants who complete the Human Hundred Challenge in 2016.

Grab your gear. Mark your map. Start your app, if that's your thing. Walk, bike, run, ski, snowshoe - however you feel moved to move yourself!

The Challenge

The "Human Hundred" challenges you to log 100 miles using human power in Denali during the NPS and Denali centennial celebrations. This means you have 2016 and 2017 to complete the challenge, though you can aim for 100 miles each year if you wish.

In addition to spending time in your park, successful challengers even get a prize - a commemorative sticker (which will be different in 2016 and 2017).

You can complete the challenge any way you wish. There will be a number of hosted/group events, which will be advertised on this page as they are scheduled - or, you can log all of your miles on your own. Regularly scheduled ranger programs are also a great way to accrue miles!


  1. Track your miles. You can use your own method, or you can download and use our simple log.

    For biking, please divide your total miles by 3 and use that number, to account for mechanical advantage. For activities best counted as "hours" (e.g., yoga, dance, etc), 1 hour = 1 mile (or use your best judgment!)
  2. Once you're done: Visit the Denali Visitor Center, Eielson Visitor Center, the Walter Harper Ranger Station in Talkeetna or the Backcountry Information Center to report that you've completed the challenge. You can also email Molly McKinley, the coordinator of the Human Hundred Challenge.
  3. Don't forget to share your #denali100 experience with your friends and family on social media!

Sample Tracking Sheet

You should keep track of your mileage (and/or hours) however you'd like. We suggest something simple, like a spreadsheet formatted like the table below:

Date Activity Miles / Hours
Example date Example activity (e.g., ranger-led hike) 2 miles
Example date Example activity (e.g., hiked Triple Lakes Trail) 9 miles
Example date Example activity (e.g., community bike ride) 2 hours

Ranger Programs, Human Hundred Events and more!

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Upcoming Events

Sorry, but there are no events between 01/19/2017 and 02/18/2017


Past Events

You're welcome to meet the Human Hundred Challenge entirely on your own, but periodic community events are also scheduled. Get a sense of what has already happened below, and keep an eye out here for future group outings.
several people cross-country skiing through a sparse forest under a blue sky
Some of the participants from the Human Hundred Challenge kick-off event

NPS Photo / Molly McKinley

February 27, 2016
Denali's first Human Hundred event, an 8-mile ski on the Spring Trail, was held on Winterfest Weekend. A spectacular afternoon graced the group of skiers who included one very small skier (in tow!) and visitors from as far away as Maryland.
a park ranger and several people on snowshoes in a snowy forest

NPS Photo

February, 2016

Range Clara led a snowshoe hike that departed from the Murie Science and Learning Center and explored Denali's front country trails.
a ranger standing among a large group of bicyclists on a dirt road

NPS Photo

March, 2016

During National Park Week, rangers led two bicycle outings, starting from the Teklanika Rest Stop and heading west on the Park Road. Over 80 cyclists participated!

Contact the Park

Mailing Address:

PO Box 9
Denali Park, AK 99755


(907) 683-9532
General park information. The phone is answered 9 am - 4 pm daily, except on Thanksgiving, Christmas Day and New Year's Day. If you reach the voicemail, please leave a message with your number and we'll call you back as soon as we finish helping the visitor on the line ahead of you.

Contact Us