Joseph Knowland State Arboretum and Park
Joseph Knowland State Arboretum and Park is a park located in the Grass Valley neighborhood of Oakland, California. It was formerly a state park, and is now the property of the City of Oakland. The Oakland Zoo occupies the developed western lowlands of the park, just off I-580.
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The parks namesake and principal founder was Joseph R. Knowland, who served on the California State Park Commission 1934-1960 and was chairman, 1938-1960. Under his influence, the State of California purchased 453 acres (1.83 km2) for $660,000 on a matching grant basis. On April 30, 1948, the property became a State Park and in December of 1949, the Park was ceded to the City of Oakland with the proviso that Knowland Park always remain a public park. At this time, a portion of the property became the new site of the relocated Oakland Zoo. Joseph Knowland was honored, on the 101st California State Admission Day, September 9, 1951, by the City of Oakland, Alameda County and the State of California, with the renaming of the park to Joseph Knowland State Arboretum and Park.
About the park
The largest and most pristine portion of the park is undeveloped, and yet is the most accessible to park users. The western highlands and northern slopes are currently a thriving hotspot for rare native plants and wildlife. Some of the natural highlights of the park include rare native plant communities, thriving but threatened wildlife, choice bird-watching locales, and a known-critical migratory corridor for mountain lions and bobcats.
In 2010, the East Bay Chapter of the California Native Plant Society (EBCNPS) included Knowland Park in its South Oakland Botanical Priority Protection Area due to its rich native plant resources that include rare natural communities of Valley Needlegrass Grassland and Maritime Chaparral.
In 2011, Oakland City Council voted to approve the expansion of the Oakland Zoo into upper Knowland Park. This move has been fiercely contested by the Friends of Knowland Park.