August 12, 2010
Mert Heidenrich, park maintenance specialist at the Whitman Mission National Historic Site, shows visitors the finished product of compost produced at the mission.
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Whitman Mission workers aim for a smaller footprint on the environment.
WALLA WALLA -- While park service staff at the Whitman Mission National Historic Site dedicate themselves to preserving the old, the facilities at the mission aren't stuck in the past when it comes to environmentally friendly technology.