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OUTDOOR SCIENCE EDUCATION

OTB925 is a non-profit organization based in Contra Costa County, California. Our participating associates are consummate professionals in the fields of education, science, technology and environmental sustainability.

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Recent Posts

January 2020 January 4, 2020
December 2019 December 31, 2019
October 2019 December 30, 2019
ELKHORN SLOUGH ESTUARINE RESERVE December 19, 2019
7-SEP-2019 FIELD TRIP – NERR-RUSH RANCH December 16, 2019

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Contra Costa Resource Conservation District – Walnut Creek Watershed Council

Friends of the Creeks – Walnut Creek (city)

Friends of San Ramon Creek

Friends of Pleasant Hill Creeks

Lafayette Creeks Committee

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