La Salle Street runs east-west in the neighborhoods of Kosciusko, LaSalle Park, Lafayette Square, and Gate District. Named in recognition of René-Robert Cavelier, Sieur de La Salle an explorer of the Mississippi Valley working for the French government to collect information about developing a French empire in the lands of North America. La Salle traveled down the Mississippi River past the future site of St. Louis in 1682. Locust Street runs east-west from Downtown St. Louis to Grand Center and Midtown St. Louis. Lynch Street is the northern boundary of what was a long narrow strip of land in the Petit Prairie section of St. Louis common land named after William A. Lynch, who developed the area. The area was called Labadie and Lynch's Addition in 1856, and runs through Soulard, Benton Park, and Compton Hill. Market Street runs east-west from Memorial Drive by the grounds of the Gateway Arch to Compton Avenue in Midtown, where it becomes Forest Park Parkway. Downtown, it is the southern boundary of the Gateway Mall. Further west in Midtown, it is the southern boundary of Harris-Stowe State University. It is the main street in St. Louis for parades and public festivals. There is also a small stretch of Market St. that runs between Prospect Ave. and South Vandeventer Ave. This section is the only part of Market St. that is south of Highway 40/Interstate 64. The old armory of the 138th Infantry building and the old Famous-Barr warehouse are located on this section of Market St.  Meramec Street runs east-west from S. Broadway in the Mount Pleasant neighborhood near the Mississippi River to Chippewa Street in the neighborhoods of Tower Grove South and Dutchtown. Named for the Meramec River the name in turn comes from a Native American term referring to the range of catfish in the waters, and a more unusual fish species, the very large and ancient Paddlefish sometimes called a "Spoonbill Catfish" for its long and flat snout. Miami Street has four separated east-west stretches. From the east, from Broadway in the Marine Villa neighborhood to the intersection of Grand Boulevard and Gravois Avenue in the Gravois Park neighborhood. Then it picks up again running east-west from Gustine Avenue to Bent Avenue. Next it runs east-west from Morganford Road to Tholozan Avenue. Finally, it runs east-west from Oleatha Avenue to Sublette Avenue in the Kingshighway Hills neighborhood.