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Forest Service Helps Defend 9/11 Witness Trees From Insect Threat

Flight 93 National Memorial
By Melanie Brezniak Eastern Region, USDA Forest Service Twenty years have passed since the 9/11 attacks, yet there’s a feeling of permanence in a hemlock grove that stands where so many lives were lost that day in southwestern Pennsylvania. Here, the Flight 93 National Memorial draws visitors to the grove’s ...

Forest Service Helps Defend 9/11 Witness Trees From Insect Threat

Flight 93 National Memorial
By Melanie Brezniak Eastern Region, USDA Forest Service Twenty years have passed since the 9/11 attacks, yet there’s a feeling of permanence in a hemlock grove that stands where so many lives were lost that day in southwestern Pennsylvania. Here, the Flight 93 National Memorial draws visitors to the grove’s ...
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