Golden Gate Park most-visited city park in the United States after Central Park in New York City, Lincoln Park in Chicago, and Balboa and Mission Bay Parks in San Diego. In the 1860s, San Franciscans began to feel the need for a spacious public park similar to Central Park, which was then taking shape in New York City. Golden Gate Park was carved out of unpromising sand and shore dunes that were known as the Outside Lands, in an unincorporated area west of San Francisco's then-current borders. Conceived ostensibly for recreation, the underlying purpose of the park was housing development and the westward
Cave gate Cave gate A cave gate is a manmade barricade typically placed at the entrance to a cave or just inside the entrance of a cave in an effort to impede or mitigate human access to a cave's interior. The reason for gating a cave can be varied, but may include protecting sensitive or endangered bat species, protecting fragile cave resources, or restricting access to dangerous caves. In the United States, an "industry standard" for gate construction has been developed. This standard has been widely used by agencies such as the National Park Service, U.S. Fish and Wildlife, Bureau of Land