Kaiser Aluminum and Chemical Corp. adopted Roberts Park in 1979, under the newly-developed Adopt-a-Park program, which promised continued funding.

[1] Roberts Regional Recreational Area has picnic tables, playground and a seasonal pool with lifeguard.

It describes how two of the most prominent redwood trees were used by sailors entering San Francisco Bay during the early 19th Century to avoid hitting a submerged hazard known as Blossom Rock.

[1] The RRRA area was covered by redwood trees that were logged between 1840 and 1860 to provide building materials needed to support the explosive population growth in San Francisco and Oakland immediately following the discovery of gold in California.

"Tommy" Roberts, then secretary to the East Bay Regional Park District board of directors for 24 years.

The park may close earlier than the posted time if the weather turns bad or if there are judged to be too few visitors.