The New Mexico Department of Cultural Affairs is pleased to announce that the state’s eight museums (including this one) and seven of its historic sites will reopen to the public at 10 a.m. on Thursday, September 24, 2020. These facilities, which closed on March 16, 2020, may resume operation at 25% of normal capacity under the state’s current Public Health Order.
You are here
Espinosa-Ortiz-Cerrillos volcanic field
Type:Mostly intermediate composition (monzonitic) intrusions and a few mesa-capping basaltic lava flows; local alteration and mineral deposits including turquoise
Age:20 - 37 Ma
Significance:The Ortiz Mountains are the site of an active gold mine and the site of the first gold rush in the continent; the Cerillos monzonite intrusions are famous for the turquoise that was mined there in the 19th century
data-href="http://www.nmnaturalhistory.org/node/948" data-layout="standard" data-action="like" data-show-faces="true">