She co-founded Chicano Park in 1970 and helped develop it into a cultural National Historic Landmark containing the largest collection of artistic murals in the United States.
[1][2] Her grandmother moved to Logan Heights in the early 20th century, and Talamantez is the third generation to live in that area.
[4] In 1970, the California Highway Patrol announced they were planning to build a substation below the Coronado bridge, replacing a potential park area that was there.
Local residents, including Talamantez, responded by staging a 12-day occupation and successfully demanded that the space be allowed to remain a park.
Other works of art in the park include sculptures, earthworks, and an architectural piece dedicated to the cultural heritage of the community.