Spring 2025 Sierra magazine issue

2025 Spring

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Black-and-white photo of Sean Guthrie looking at the camera through a window inside his house. The house has vines covering it.
Feature

Radioactive Shadow Workers

The treatment of oil and gas field waste is a dirty industry’s dirtiest secret

By Justin Nobel

March 24, 2025

Illustration shows an aerial view of a meandering river through dark forest.
Feature

Alaskan Tribes and Activists Are Ready to Resist Ambler Road, Again

The proposed route would slash through pristine Indigenous land

Story and Illustrations by Sarah Gilman

March 25, 2025

bog turtle
Feature

To Save the Tiniest Turtle in North America, Scientists Are Rebuilding Bogs From Scratch

The work is part of a growing movement of scientists starting with habitat conservation

By Carrie Arnold

March 26, 2025

Early evening photo of a canyon in a low Lake Powell, with a white layer at the bottom and a redrock layer up top. A small boat is beached on the shore.
Feature

Colorado River Run

A photographer embarks on a journey to rediscover the river that helped make the West

By Pete McBride , Nick Paumgarten , Kevin Fedarko

March 30, 2025