the home of the newly formed California State League. By 1899, the park's days as a baseball venue were over, as it had been converted into a steeple chase rollercoaster and a building housing the "Battle of Manilla" panorama. An indoor roller skating rink was built on part of the site. It opened to the public for the first time on April 11, 1906.[San Francisco Examiner, April 11, 1906, p.11] One week later, the buildings on the property succumbed to the earthquake. Location: Market Street (northwest, home plate); 8th Street (southwest, right field); Mission Street (southeast, center field); buildings and 7th Street (northeast, left field); across Market Street from the city hall (per 1901 city directory) 1896 Photo. Initial newspaper reports stated that home plate was "nearest Market Street".[San Francisco Examiner, Nov 10, 1884, p.1], a fact confirmed by the photo. Home of: San Francisco – Pacific Coast Baseball League (1886–1887)? San Francisco – California State League (1888)? Currently: Trinity Place Sanborn map showing Central Park, 1887 Sanborn map showing Central Park, 1899 Haight Street Grounds Haight-Street Recreation Grounds. Following a league dispute at the Central Park grounds, James Fair established a new ball park in 1886 known as the Alameda Grounds on the island of Alameda (adjacent to Oakland) for play of the California League, which was moved the following year for play at a new baseball park in the Haight District. With grandstands seating 14,000 and located at the terminus of a railcar line. 1887 to March 1895. The borders of this ball park were Stanyan Street (west, first base); Waller Street (north, third base); Shrader Street (listed as "Rader" Street in the 1889 Sanborn map) (east, left field); and Frederic Street (to the south, beyond right field) Photo. It was built across Stanyan from the future site of the Kezar Stadium complex. Teams playing in this park included Greenhood and Morans, both of Oakland Colonels – California League (1887–1889); Haverlys / Friscoes – California League (1887–1893) Most of the ballpark, on a Sanborn map, 1889 California League Grounds California League Grounds a.k.a. Sixteenth and Folsom Street Grounds Sometimes also called Recreation Grounds, potentially confusing historians due to a concurrent facility with the same name (see next section) Home of: San Francisco – California State League (1896 only) San Francisco Olympics – California League (1897) Location: Northeast corner of 16th Street and Folsom Street (per 1897 city directory);