Two closed-off stairwells lead down from the first floor of the Alcatraz Cellhouse to a lower, blocked-off basement level called the Citadel, one of the earliest structures on Alcatraz. Through the digital resources on this page, this site and its history can be observed and interpreted virtually. 

Alcatraz Cruises has limited passenger capacity on ferries to the island to 20% and also enlisted enhanced safety measures on the dock and the boats to help reduce the potential spread of Covid-19. This is truly a special time to have this historic island almost entirely to yourself.

By creating equitable access to high quality professional development for educators, we ensure that all youth can find relevant, quality programming anywhere in the park.

All data displayed on this site are preliminary and have not yet undergone quality control. Written permission is required to use the data.

By sharing data across organizations, we can better understand who the park is serving (and not serving!), using that data to improve programs and reach underserved audiences.

By sharing strategies for both physical and digital access to the park, we hope to ensure that no opportunity is out of reach for park visitors.

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The Vulture Ecology Study: 2020 Update is part of the Golden Gate Raptor Observatory (GGRO) 2020 Pacific Raptor Report. It was authored by biologist Teresa Ely, GGRO’s Banding Manager and resident vulture expert.