Culture of San Francisco year-round and available for private functions. Classical and Opera venues in San Francisco include the San Francisco Symphony, the San Francisco Opera and the San Francisco Ballet. They all perform at the San Francisco War Memorial and Performing Arts Center. San Francisco's Ballet and Opera are some of the oldest continuing performing arts companies in the United States. San Francisco is the birthplace and home city of the vocal ensemble Chanticleer. The city is also home to the American Conservatory Theater, also known as A.C.T., which has been routinely staging original productions since its arrival in San Francisco in 1967.
San Mateo Creek (San Francisco Bay Area) San Mateo Creek (San Francisco Bay Area) San Mateo Creek ("Spanish for": St. Matthew Creek) is a perennial stream whose watershed includes Crystal Springs Reservoir, for which it is the only natural outlet after passing Crystal Springs Dam. After discovering San Francisco Bay from Sweeney Ridge on November 4, 1769, the Portolà expedition descended what Portolà called the "Cañada de San Francisco", now San Andreas Creek (or possibly San Mateo Creek), both of which emptied into the "Laguna Grande" where the party camped (now covered by the Upper Crystal Springs Reservoir). The Laguna Grande place name is also shown on