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Colorado · Since 2021

Niwot Ridge Long Term Ecological Research Station

Visitors to their sites take the photos. Every one becomes part of a timelapse you can explore.

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  • 2

    Chronologs

  • 307

    Visitor photos

  • 102

    People who sent one

  • 6

    Years of photos

In their words

About Niwot Ridge Long Term Ecological Research Station

At the Niwot Ridge Long-term Ecological Research Program (NWT LTER), we study the air, snow, water, soil, microbes, lakes, trees, flowers, and animals in the high mountains of the Colorado Rockies. We measure, experiment and model how all these pieces fit together and have affected the health of our mountains over the last 40 years. Our mission is to better understand how our complex mountain systems are changing and better predict the future of the many critical services these systems provide to all of us living downhill — in Boulder, in Colorado, and beyond.

A hiker sets a phone in a Chronolog to photograph grassy coastal hills

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Give your place a memory.

Each person who stops adds a photo. Together, they show how your site changes.

  • Up in an afternoon
  • No power or Wi-Fi
  • Full-resolution photos and video