• pond surrounded by green brush, reflecting a distant range of snow-covered mountains that are dominated by one massive mountain

    Denali

    National Park & Preserve Alaska

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  • Road Open to: Mile 30 (Teklanika River)

    The Denali Park Road is currently open to Mile 30, Teklanika River. If wintry conditions occur, the road may close at some point closer to the park entrance. More »

Exploring Land Cover Change Through Repeat Photography

Exploring Land Cover Change Through Repeat Photography

Get a birds-eye view on Denali's changing landscape. Our partner's website contains a wealth of information about Denali's landscapes and allows you to view hundreds of matched historic/current photographic images that help us document and understand ecological changes occurring in the park.

Consider also taking a more focused virtual tour of landscape changes in Denali.
 
About the Project

The Denali Repeat Photography project has assembled more than 200 photo pairs taken across a large cross-section of Denali from the low-lying black spruce forests to ice fields high in the Alaska Range. What unites these disparate images is that they show repeated views of a single location at different moments in time. The interval separating the pairs of photos varies greatly - from just a few years to longer than a century!

Some of the images reflect major changes that have occurred in the physical landscape such as shrinking of huge glaciers or changes in the size of lakes or ponds. Other photo pairs show changing patterns of vegetation such as the establishment of spruce trees in formerly treeless areas or shrubs invading wetlands, and some show changes humans have made by building structures and roads. Still other photos show no apparent change at all over long spans of time.

The website serves as a clearinghouse of visual information about the wonderful and dynamic Denali landscape. The photographs have come from many different people and sources - from historical collections, longtime Denali researchers, and students visiting the area for the first time.

Did You Know?

a thin green plant against a background of white clouds, blue sky and bright sun

Visibility is an important component of measuring Denali's air quality. Visibility data, such as that from the Wonder Lake camera, supplements chemical data from filter samples. Air here is still clean, but traces of pollution from local, regional and international sources exists on filter samples.