The 20-year effort to draw a map unearthing Alaska’s treasures

In our NewsHour Shares moment of the day, the U.S. Geological Survey released its first-ever digital map of Alaska, revealing thousands of geological details that can be used to contribute to new scientific assessments of the northern-most state.

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    And now for our NewsHour Shares, something that caught our eye that we thought might be of interest to you too.

    The U.S. Geological Survey on Tuesday released its first ever digital map of the nation's northernmost state. In vibrant colors, it reveals thousands of Alaska's geological details that can be used to contribute to mineral, energy, hazard, and other types of scientific assessments.

    Shades of red represent areas where rare-earth elements, like those used in electronics, are most likely to be uncovered, while green represents the rocks where most dinosaur fossils are found. It took Frederic Wilson, along with a team of a dozen unpaid retired scientists, some 20 years to create. They drew on more than 750 references, some dating back to the early 1900s.

    Scientists say a map like this could help identify new earthquake fault zones and help the oil and gas industry scope out their next big find.

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