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planting trees at Alta Ski Area on a sunny summer day

Alta Tree Planting Day

Reforesting the mountain, one tree at a time.

Join the Alta Environmental Center, TreeUtah and the Cottonwood Canyons Foundation for our annual Alta Tree Planting Day!

Together, we’ll plant up to 1,500 native tree saplings across Alta’s slopes—a vital step in restoring and protecting the health of our mountain forests. Volunteers will hike to designated planting sites, carefully selected based on elevation, aspect and vegetation type. Throughout the day, you’ll work alongside team members and experts to hand-plant trees that will help sustain Alta’s alpine environment for generations to come.

Each sapling begins its journey right here at Alta. Every fall, U.S. Forest Service climbers collect cones from high in the canopy. The seeds are sent to a Forest Service nursery in Idaho, where they are nurtured into strong, healthy young trees—ready to return home to Alta’s slopes with the help of our community.

Register to leave a lasting mark on our slopes >

when

September 20, 2025 | 8am–1pm

Where

Alta Ski Area | Location TBD

About

  • Registration for this event will open on August 20th.
  • Event location disclosed with registration.
  • This event is recommended for hikers with intermediate to advanced abilities only.

Partners

Did you know?

Since 1991, 42,324 trees and 96,689 native plants have been planted across Alta’s slopes—thanks to our community's commitment to keeping Alta green.

Each year, with the help of volunteers, we plant up to 1,500 native tree seedlings, making our annual planting events one of the most meaningful ways to give back to the mountain we all love.

Alta’s forests were once heavily impacted by generations of mining, leaving slopes bare and ecosystems disrupted. Today, tree planting continues as part of a long-term commitment to restore the landscape, strengthen the watershed and protect the alpine environment for future generations.

Alta Ski Area was denuded of trees after generations of mining

Tree planting efforts continue at Alta Ski Area

1919 VS 2019

This work is far from finished — but with your help, we’re making lasting progress, one tree at a time.

Learn more about Alta's ongoing land conservation efforts >

Upcoming Events