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Light level geolocator. A red knot equipped with a GLS. A light level geolocator, light-level logger or global location sensor ( GLS) is a lightweight, electronic archival tracking device, usually used in bird migration research to map migration routes, identify important staging areas, and sometimes provide additional ecological information.
It remains unclear where most of the birds spend the winter, although some of the birds have been tracked as far south as Brazil. A study published in 2012 tagged four birds breeding in Colorado with a light-level geolocator and found that the birds wintered in the lowland rainforest of western Brazil. [12]
Oc. W 4s. Point Pinos Lighthouse was lit on February 1, 1855, [ 4] to guide ships on the Pacific Coast of California. It is the oldest continuously operating lighthouse on the West Coast of the United States and even the lens is original. Alcatraz Island Lighthouse preceded Point Pinos by eight months, but was replaced in 1909 by the expanding ...
The largest single reservoir in California is Shasta Lake, with a full volume of more than 4,552,000 acre-feet (5.615 km 3 ). Map all coordinates using OpenStreetMap. Key. † denotes reservoir not entirely in California. ‡ denotes reservoir that is offstream or receives most of its water from a source not associated with its feeder stream (s).
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List of lighthouses in California. There are several lighthouses in the U.S. state of California, including a few listed on the National Register of Historic Places . Lighthouse Friends (California) / 37.826250°N 122.422167°W / 37.826250; -122.422167. / 34.015827; -119.359548.
California Light Streaks This image from video provided by Jaime Hernandez shows streaks of light travelling across the sky over the Sacramento, Calif., area on Friday night, March 17, 2023.
Nicasio Reservoir aerial, 2012. Nicasio Reservoir is a shallow, artificial reservoir in the Nicasio Valley region of Marin County, California, United States. It covers 845 acres (3.42 km 2) and sits in a 35.9 square miles (93 km 2) drainage basin. It was created by the construction of Seeger Dam on the Nicasio Creek in 1961 (63 years ago).