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Olmsted Center for Landscape Preservation

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Date: October 22, 2008

National Park Service

U.S. Department of the Interior


Yellowstone National Park

P.O. Box 168

Yellowstone National Park, WY 82190



Olmsted Center for Landscape Preservation in Yellowstone

National Park


National Park Service  landscape preservation specialists from the Olmsted Center for Landscape Preservation (OCLP) are working in the Fort Yellowstone Historic District in Mammoth Hot Springs on condition assessment and the stabilization of the cottonwood trees that line Officer's Row.

The OCLP team of arborists is in the park this week working with arborist trainees and Yellowstone staff on the technical pruning of dead, damaged or unsafe branches and trees. If time allows, other types of trees within the Historic District will also be assessed by the OCLP team.

OCLP Arborist Training Programs provide field-based educational opportunities for landscape maintenance employees to develop specialized skills in sustainable tree care and landscape preservation assistance to parks and historic properties throughout the nation.  The OCLP will assist Yellowstone’s landscape managers in identifying and slowing deterioration, improving resource conditions, and preserving the historical integrity of the culturally significant trees in the Fort Yellowstone area. 

This project has been made possible by a generous grant from the Yellowstone Park Foundation. 

-www.nps.gov/yell -


Producers/Editors note:  Publication quality digital images of arborists at work in Mammoth Hot Springs are available upon request.

Did You Know?

Bison in Yellowstone.

There are more people hurt by bison than by bears each year in Yellowstone. Park regulations state that visitors must stay at least 25 yards away from bison or elk and 100 yards away from bears.