The Who during their stop in San Francisco, where they played two concerts at The Fillmore, June 16 & 17, 1967. © Jim Marshall Photography LLC

The summer of 1967 in San Francisco was a magical time and place.

Like a lot of young people, Jim Marshall was there. Drawn to the city's Haight-Ashbury district by the surge of culture manifesting there—in music and fashion, in politics and mind-expanding drugs. Unlike the hordes of flower children washing up in the bohemian enclave that summer, Marshall was there to work. As a photographer employed by the biggest music labels in the business his job was to create a visual record of what Hunter S. Thompson would later lament as "the crest of a high and beautiful wave."

In 1967, 100,000 hippies from across the country converged on San Francisco in a mass phenomenon dubbed the "Summer of Love." Many were college kids on summer break and would leave come autumn—others stuck around to witness the Haight's slow decline into a cultural wasteland. Marshall's access to the day's top bands—from Jimi Hendrix and The Beatles to the Grateful Dead—and the trust afforded him by celebrity musicians paved the way for his unparalleled set of images from the period. The photographer was even standing next to Timothy Leary when he uttered his infamous credo at the Human Be-In in Golden Gate Park: "Turn on, tune in, drop out."

Jimi Hendrix performing onstage at a free concert in the Panhandle, June 19, 1967. © Jim Marshall Photography LLC

A new exhibition produced by the San Francisco Arts Commission Galleries, in conjunction with a city-wide celebration of the Summer of Love's 50th anniversary, features 80 prints from Marshall's prolific 1967 output. The show proves the value of Marshall's work as a historical document, but it is also, as SFAC Galleries director and co-curator Meg Shiffler describes, "an exhibition that focuses on the way that photographer Jim Marshall helped to define our cultural understanding of the Summer of Love, the San Francisco hippie movement, and the birth of psychedelic rock and roll."

Marshall was the rare photographer whose work could impact the culture at large—not just music fans or students of history. It's entirely possible his pictures might outlast the music itself, which in some cases wouldn't be such a bad thing (Deadheads, we're looking at you).

Jim Marshall's 1967 is on view at San Francisco City Hall, free and open to the public through June 17, 2017.

The famous corner of Haight-Ashbury streets, June 1967. The Unique Men's Shop is now a Ben & Jerry's ice cream shop. © Jim Marshall Photography LLC
Panhandle crowd at Hells Angels' Thanks for Diggers New Years Day Wail, January 1, 1967. © Jim Marshall Photography LLCDancing in the Panhandle, June 1967. © Jim Marshall Photography LLC
Janis Joplin on her bed, taken in her apartment on Lyon Street, December 1967. © Jim Marshall Photography LLC
Eric Clapton playing guitar in Jim Marshall's apartment on Union Street, August 1967. © Jim Marshall Photography LLC
Jorma Kaukonen, Spencer Dryden, and Grace Slick during a photo shoot in Golden Gate Park, May 1967. © Jim Marshall Photography LLC
A family driving down Haight Street, looking at hippies, June 1967. © Jim Marshall Photography LLC
(L) Krishna's Kirtan, a sacred chant music group, on the Diggers truck during the Ratha-Yatra Festival on Haight Street, July 9, 1967. / (R) Hells Angels Thanks for Diggers New Years Day Wail free concert in the Panhandle, January 1, 1967. © Jim Marshall Photography LLC
People dancing and enjoying the Human Be-In at Golden Gate Park Polo Fields, January 14, 1967. © Jim Marshall Photography LLC
Timothy Leary, Allen Ginsberg, and Gary Snyder onstage telling everyone to "Turn on, tune in, and drop out" at the Human Be-In at Golden Gate Park Polo Fields, January 14, 1967. © Jim Marshall Photography LLC
Jerry Garcia and Carolyn "Mountain Girl" Garcia on the steps of the Grateful Dead house at 710 Ashbury Street, May 1967. © Jim Marshall Photography LLCThe Straight Theater on Haight Street, September 1967. © Jim Marshall Photography LLC