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Last August I spent a day scrambling up steep granite outcroppings perched high above a popular hiking trail in Rocky Mountain National Park. Colleagues and I were searching for patches of Rocky

The Endangered Species Act of 1973 is the primary law protecting rare and imperiled species and their habitats in the United States. The U.S. Fish & Wildlife Service is responsible for adding or

What threatens Sclerocactus glaucus? Installation and maintenance of huge pipelines that move oil and gas from the well pads miles and miles to the collection facilities; roads; browsing and trampling

Each year, as spring rolls around, the Research and Conservation staff load up a 4-wheel drive vehicle with our gear, head out across Colorado and the Rocky Mountain west region in search of rare