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Cerutti Mastodon site

Harv and Sfn no-target errorsPaleontology in CaliforniaPleistocene paleontological sites of North AmericaPre-Clovis archaeological sites in the AmericasUse mdy dates from April 2017

The Cerutti Mastodon site is a paleontological and possible archeological site located in San Diego County, California. In 2017, researchers announced that broken mastodon bones at the site had been dated to around 130,700 years ago. The bones were found with cobblestones displaying use-wear and impact marks among the otherwise fine-grain sands. Researchers have proposed that these marks were caused by the intentional breakage of the broken bones by hominins using the cobblestones. If so, this suggestion would be older by far than the scientific consensus for habitation of the New World, which generally traces widespread human migration to the Americas to 13,000 to 16,000 years ago.

Excerpt from the Wikipedia article Cerutti Mastodon site (License: CC BY-SA 3.0, Authors).

Cerutti Mastodon site
Parkside Avenue, San Diego Paradise Hills

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N 32.665944444444 ° E -117.05316666667 °
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Parkside Avenue 6169
92139 San Diego, Paradise Hills
California, United States
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Sweetwater Dam Naval Outlying Landing Field
Sweetwater Dam Naval Outlying Landing Field

Sweetwater Dam Naval Outlying Landing Field was a airfield near Naval Auxiliary Air Station Brown Field and Naval Air Station North Island used to support the training of US Navy pilots during World War 2. The runway built in 1944 was located in what is now a neighborhood 8 mile east of San Diego, California. The Navy support airfields are called Naval Outlying Landing Field (NOLF). For the war, many new trained pilots were needed. The Naval Outlying Landing Field provided a place for pilots to practice landing and take off without other air traffic. Sweetwater Dam site offered flight training without distractions. Most of the new pilots departed to the Pacific War after training. The Sweetwater Dam Outlying Landing Field had no support facilities. After the war the Outlying field closed in 1946, having completed the role of training new pilots. Sweetwater Dam Naval Outlying Landing Field and Sweetwater Carrier Landing Strip. The Landing Field had a single 3,000-foot east/west asphalt runway. The Navy leased 135.45 acres of grassland from Rancho de la Nación for the Landing Field. In 1949 the runway became a private civil airport, the Sweetwater Dam Airport also called the Paradise Mesa Airstrip. The Airport is named after the nearby Sweetwater Dam that makes the Sweetwater Reservoir. The Airport closed in 1951 and the runway became home to the Paradise Mesa Drag strip. The Carlsbad, California's Oilers Club help start the drag strip with the first meet on March 11, 1951. At its peak, 25 clubs were using the strip. The drag strip closed in 1959. Houses were built on the site, now called Paradise Hills and no trace of the runway can be found today. Part of the site is also the Daniel Boone Elementary School.