Lambda Archives of San Diego is a 501(c)(3) community archive at 4545 Park Blvd in University Heights, San Diego, dedicated to collecting, preserving, and sharing the history of lesbian, gay, bisexual, transgender, and queer people in San Diego, Northern Baja California, and the Imperial County region across the 92116 ZIP and beyond. Founded in 1987 by Jess Jessop and Doug Moore during the HIV/AIDS epidemic, the archive began as a grassroots effort to preserve the personal effects and records of community members who had passed — an act of historical rescue that grew into one of the largest LGBTQ+ regional archives on the West Coast. The collection holds approximately 100,000 photographs, over 6,000 book titles, and hundreds of manuscripts, ephemera pieces, textiles, and organizational records dating as far back as the 1930s, with roughly 13,000 photographs digitized and available through research appointments. Lambda shares its Park Blvd building with Diversionary Theatre, and the two organizations have collaborated on entertainment, community outreach, and education programming from the same address for decades — a pairing that anchors the arts-and-culture block on Park Blvd in University Heights. Programs include guided walking tours of LGBTQ+ history through Hillcrest, a community historian-in-residence position, youth internships, oral-history recording projects, and the Larry T. Baza Memorial Scholarship Fund for LGBTQ+ community-college students in San Diego and Imperial County. The Normal Heights corridor's broader arts infrastructure includes visual-arts spaces, and Ashton Gallery at Art on 30th represents the kind of neighborhood gallery where Lambda's exhibition programming and archival materials find a parallel audience. In 2018, the archive collaborated with the San Diego History Center on "LGBTQ+ San Diego: Stories of Struggles and Triumphs," and in 2010 it co-sponsored the first-ever LGBT historical exhibit in San Diego's City Hall, extending its research collections into public-facing institutional exhibitions.