The Bay Area was not merely a backdrop to psychedelic history: it became a working junction where Al Hubbard’s mobile network of therapists and researchers met engineers, corporate experiments, underground guides, and later advocates for renewed clinical research. Its significance lies in the movement of knowledge between those worlds. In and around Menlo Park, LSD was explored as a means of expanding creativity and human potential; decades later, the region also offered a concentrated view of the underground practice that survived after sanctioned research ended.

A meeting ground for Hubbard’s network

By the late 1950s, Al Hubbard was carrying LSD and therapeutic methods between research centers across North America. His circuit included Weyburn, Manhattan, Chicago, Los Angeles, and Vancouver; he later added Menlo Park and Cambridge. In the Bay Area, his role was not simply to bring a drug to a new place. He guided sessions, shared techniques, and trained people who would then help carry the practice onward. The region thus became one node in a much wider network, with Hubbard acting as an intermediary between medical researchers and people curious about psychedelic experience beyond the treatment of illness.

That exchange gathered momentum through Myron Stolaroff, an engineer at Ampex. After taking 66 micrograms of LSD, Stolaroff described an experience that ranged across the planet’s history, reached back to his own birth, and left him committed to psychedelic work. He shared what had happened with a small circle of colleagues, who began meeting periodically to discuss spiritual questions and whether LSD might help healthy people realize more of their potential. Don Allen, a young Ampex engineer, and Willis Harman, a professor of electrical engineering at Stanford University, joined the group. Hubbard came to Menlo Park to guide their journeys and train them to guide others. A circle that began with colleagues’ conversations was becoming a local infrastructure for psychedelic practice.

The corporate experiment and IFAS

Stolaroff and Hubbard briefly tried to remake Ampex as what they envisioned as the world’s first psychedelic corporation. Hubbard led weekly workshops at the company headquarters and administered LSD to executives at a site in the Sierra. The effort encountered a limit when Ampex’s general manager objected to the religious images Hubbard insisted on bringing into his office: Christ, the Virgin Mary, and the Last Supper. The episode exposed a tension at the heart of the experiment. LSD was being presented as a tool for creativity and organizational change, but Hubbard’s approach also carried conspicuous spiritual commitments that not everyone in a corporate setting accepted.

A related change took place at Stanford University. Harman shifted the focus of his teaching and introduced a course on human potential that concluded with a unit on psychedelics. The movement of engineers toward spiritual questions was not confined to private sessions; it was beginning to shape what could be discussed in an academic setting. The book links that mid-century experiment to Silicon Valley’s continuing interest in psychedelics as aids to creativity and innovation, including later practices of regular, very small LSD doses. It also notes that some Bay Area technology companies adopted psychedelic experiences in management training, while others established “microdosing Fridays.” These later examples echo the earlier ambition to connect altered states with work, though they do not mean that the original corporate project succeeded.

In 1961, Stolaroff left Ampex to devote himself full-time to psychedelic research. With Harman he established the International Foundation for Advanced Study in Menlo Park, aiming to investigate LSD’s potential to enhance personality and creativity. The foundation hired psychiatrist Charles Savage as medical director and James Fadiman as staff psychologist; Don Allen left engineering to become a screener and guide. It secured a research permit from the Food and Drug Administration and obtained LSD and mescaline through Hubbard. Over the next six years, the foundation worked with about 350 people. The progression from Ampex colleagues meeting to discuss possibility, to an organized research foundation with staff, a permit, and a defined client population, shows how the Bay Area network could turn informal enthusiasm into structured investigation.

Engineers, complexity, and the Whole Earth Network

The region’s technical culture helped give this work a distinctive rationale. Peter Schwartz, a futurist who encountered Hubbard through Willis Harman, gradually recognized that many of the people around him with unconventional ideas had taken LSD with Hubbard: professors at Stanford University and UC Berkeley, people at Stanford Research Institute, computer engineers, scientists, and writers. Schwartz recalled that some early computer engineers used LSD while designing circuit chips, especially before computer-based design was available. The task required them to hold intricate three-dimensional structures in mind. He connected the appeal to engineering’s irreducible complexity: engineers had to balance many interacting variables and search for patterns where problems could not simply be reduced to a few manageable parts. In that account, LSD mattered not as an abstract promise of inspiration but as a perceived aid to a specific kind of visualization.

Schwartz extended the observation beyond laboratories and companies to the Bay Area technology scene of the 1960s and early 1970s and the people around Stewart Brand’s Whole Earth Network. He understood Hubbard’s influence as unusually widespread within that community. This makes the region more than the location of a few experiments: it was a place where psychedelic practice circulated through personal and professional connections, including engineering, research, and countercultural networks. The same informal transmission that helped bring researchers together also made the boundaries between laboratory work and wider cultural experimentation difficult to keep firm.

Underground guides and continuing lineages

The Bay Area is described as probably having the largest concentration of underground psychedelic guides in the United States. After sanctioned psychedelic therapy ended, some guides continued to work illegally, risking their freedom and, for credentialed practitioners, their professional licenses. The account of the author’s reporting shows how access depended on introductions: a friend connected the author to someone who worked with a guide near Santa Cruz, and contacts made while reporting on university trials opened routes to underground practitioners. Trust accumulated one introduction at a time. The author interviewed fifteen underground guides and worked with five, while changing names, locations, and other identifying details to protect them.

These practitioners were not presented as a single formal organization. Most of those interviewed could trace a professional lineage to earlier psychedelic therapists, often through Timothy Leary, Stanislav Grof, Al Hubbard, or Leo Zeff. Zeff, who died in 1988, was among the best-known underground therapists; he said he had worked with 3,000 patients and trained 150 guides, including several on the West Coast. His methods helped codify agreements around strict confidentiality, a prohibition on sexual contact, and clients’ obedience to instructions during sessions. The later university research world was not wholly separate from this underground inheritance: researchers at Johns Hopkins University consulted underground guides about their musical practices when studying music in guided psilocybin sessions, and some guides helped train a new cohort for university trials.

The scale of this dispersed network became visible in San Jose in 2010. At a psychedelic-science conference organized by the Multidisciplinary Association for Psychedelic Studies, James Fadiman announced a meeting for guides and expected only a handful to attend. A hundred showed up the next morning. The meeting did not turn the guides into a unified association, but it revealed a substantial group sharing practices and professional concerns across the underground and university settings. In this history, the Bay Area’s recurring role is connective: Menlo Park linked engineers to guided research, the wider region sustained networks of underground practice, and San Jose briefly made that hidden population visible. Its importance comes from the routes it opened between worlds that remained uneasy about acknowledging how much they had learned from one another.