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historicalmarkerproject/markers/HM1OCT_welcome-to-capulin-volcano-national-monument_Des-Moines-NM.html
Capulin Volcano directly in front of you is a dramatic example of the volcanic processes that shaped northeastern New Mexico. Capulin Volcano National Monument preserves this classic cinder cone. About 60,000 years ago thunderous explosions sent m…
historicalmarkerproject/markers/HM1OCS_making-a-monument_Des-Moines-NM.html
The late 1800s were a time of homesteading and private acquisition of public lands. Conservationists began working to preserve some public lands like Yellowstone and Yosemite. In 1891, the General Land Office of the Department of the Interior with…
historicalmarkerproject/markers/HM1OCR_the-raton-clayton-volcanic-field_Des-Moines-NM.html
This region of volcanic activity is the Raton-Clayton Volcanic Field. It has been active periodically, beginning at the western edge of the field with the Raton Phase from 9 to 3 million years ago. The Capulin Phase began about 1 million years ago…
historicalmarkerproject/markers/HM1OCP_grasslands-meet-mountains_Des-Moines-NM.html
The shortgrass prairie and mountain forest meet here in the high plains of northeastern New Mexico. This transition between two ecosystems provides habitat for many different plants and animals. The shortgrass prairie is the western limit of the N…
historicalmarkerproject/markers/HM1OCN_building-a-cinder-cone_Des-Moines-NM.html
Cinder cones experience a single eruptive period, and then die. Several explosive eruptions created Capulin Volcano, during a period as short as one year or as long as nine or more years. Today Capulin Volcano is extinct.
Volcanic ash, cinders…
historicalmarkerproject/markers/HM1O0Q_sierra-grande_Des-Moines-NM.html
Largest extinct volcano in northeastern New Mexico, Sierra Grande rises to an elevation of 8,720 feet, one of many volcanos, cinder cones, and flows that cover more than 1,000 square miles of area in northeastern New Mexico and southeastern Colora…
historicalmarkerproject/markers/HM1O0D_sierra-grande_Des-Moines-NM.html
Largest extinct volcano in northeastern New Mexico, Sierra Grande rises to an elevation of 8,720 feet, one of many volcanos, cinder cones, and flows that cover more than 1,000 square miles of area in northeastern New Mexico and southeastern Colora…
historicalmarkerproject/markers/HM1O08_capulin-volcano-national-monument_Des-Moines-NM.html
As outstanding example of an extinct volcanic cinder cone. Capulin Mountain was formed as early as 10,000 years ago. In cinder cones, lave pours from cracks in the base rather than over the top. Capulin itself was the escape hatch for gases that b…