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January 20, 1961 [2] Sandia Cave, also called the Sandia Man Cave, is an archaeological site near Bernalillo, New Mexico, within Cibola National Forest. First discovered and excavated in the 1930s, the site exhibits purported evidence of human use from 9,000 to 11,000 years ago. It was declared a National Historic Landmark in 1961. [2]
By 1914 Sandia had 150 inhabitants, a bank, two general stores, and a cotton gin. The population steadily increased, and in 1925 was estimated at 200, a figure which increased to 500 by 1927. In 1936 Sandia had three businesses, two churches, multiple farm units, and several dwellings and was a stop on the Texas and New Orleans Railroad.
The Cibola National Forest is organized into several divisions over three states. The Rita Blanca National Grassland 92,989 acres (376.3 km 2) in Dallam County, Texas, and Cimarron County, Oklahoma, Black Kettle National Grassland 31,286 acres (126.6 km 2) in Roger Mills County, Oklahoma, and Hemphill County, Texas, and McClellan Creek National Grassland 1,449 acres (5.9 km 2) in Gray County ...
Cambria Cavern was a small limestone solutional cave which was discovered on 8 February 2018 when a portion of the cave's roof collapsed, causing sinkhole opened up in a residential area in Round Rock, Texas. [2] To stabilize the road and utility lines above the cave, the cave was partially filled with concrete and sealed. [3]
Sandia Base. Coordinates: 35°2′25″N 106°32′59″W. Sandia Base was the principal nuclear weapons installation of the United States Department of Defense from 1946 to 1971. [1] It was located on the southeastern edge of Albuquerque, New Mexico. For 25 years, the top-secret Sandia Base and its subsidiary installation, Manzano Base ...
The Caverns of Sonora, a National Natural Landmark, [1] is a unique cave located 8 miles (13 km) west of the small city of Sonora, the seat of Sutton County, Texas. It is a world-class cave because of its stunning array of calcite crystal formations, especially helictites. These helictites are found in extreme abundance, often with a rare ...
The Cave Without a Name is a limestone solutional cave in the Texas Hill Country region of Central Texas. It is a National Natural Landmark. [1] The cave is located 40 mi (64 km) from downtown San Antonio, and 10 miles northeast of Boerne off FM 474 and Kreutzberg Road. It has been commercially operated as a show cave and open for public tours ...
Texas Historical Marker for Cascade Caverns. Cascade Caverns is a historically, geologically, and biologically important limestone solutional cave 3 mi (4.8 km) south of Boerne, Texas, United States, on 226 Cascade Caverns Road, in Kendall County. It has been commercially operated as a show cave and open for public tours since 1932.