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The Copper Kings 100 is Montana's second 100-mile ultramarathon — 63 miles of Continental Divide Trail, 40-hour cutoff, and a community that shows up for every runner. The Montana Endurance Trail Foundation makes it happen and keeps the trails open year-round. Help us do it again in 2026.

Ways to Give

Every gift to the Montana Endurance Trail Foundation helps build and sustain trail running in Montana. Here are a few ways to support our work.

Donate Online

The fastest and easiest way to give is by credit or debit card through our secure payment portal.

By Mail

Prefer to send a check? Make it payable to Montana Endurance Trail Foundation and mail to:

Montana Endurance Trail Foundation
PO Box 3591
Butte, MT 59702

Donor-Advised Funds & Appreciated Securities

If you have a donor-advised fund (DAF), you can recommend a grant to the Montana Endurance Trail Foundation through your fund sponsor. You can also donate appreciated stock or other securities directly.

These options can have tax advantages worth discussing with your financial or tax advisor, who can help you determine what works best for your situation.

Montana Endurance Trail Foundation is a 501(c)(3) tax-exempt nonprofit organization. EIN: 39-4225437. Donations are tax-deductible to the extent allowed by law. You will receive a receipt for tax purposes. No goods or services were provided in exchange for your donation unless otherwise noted. Please consult your tax advisor regarding the deductibility of your contribution.

Two hikers walking uphill on a dirt trail through a forest with tall trees and large rocks.
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