Turn one week into inspiration for a lifetime

We take motivated individuals, band them together, and hike 75 miles across the Sierra on an inspirational trek to Mt. Whitney. Join us on one of four treks we have planned for 2015 and create memories that will last a lifetime.

1 week, 75 miles, 14,505 feet
Are you up to the challenge?

Learn more

The Trans-Sierra Xtreme (TSX) Challenge is an annual series of guided 75 mile backpacking treks across Sequoia and Kings Canyon National Parks. The inspirational journey traverses some of the most remote regions of the Sierra Nevada before culminating with an ascent on Mt. Whitney (elev. 14,505 feet), the highest point in the lower 48 states. Our treks are open to individuals of all ages. Since 1983, our founders have taken over 500 ambitious individuals on the week-long trans-Sierra trek. Who we are >

Where you’ll travel

75 miles, to Mt. Whitney (14,507ft) and beyond

Map of Trans-Sierra backpacking trail to Mt. Whitney


All of our Trans-Sierra Xtreme Challenge experiences are based on the same one week, 75 mile trans-Sierra trail that crosses Sequoia and Kings Canyon National Parks to Mt. Whitney (14,505ft).

View full itinerary

Sample life on the trail

Click play, enjoy.

Video by Delanie Lowe

Unplug with serious wilderness

Experience some of the most remote, least traveled regions of the Sierra

Create lifelong memories

Why lay at the beach when you could be hiking Mt. Whitney instead?

Recharge with rugged inspiration

This is the view from our "penthouse suite"

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