VELARDE — Spread out in three small groups on a rugged slope overlooking the lush green bosque along the Rio Grande, student interns slowly navigate and investigate the large basalt boulders scattered along Mesa Prieta.

With cameras, GPS devices, measuring tapes, pencils, mapping sheets and photo data sheets, the teens use the skills they’ve recently acquired to document the markings they find on the rocks that are touchstones to the people who inhabited or passed through this significant corridor hundreds to thousands of years ago.

The 36-square-mile mesa north of Española has been identified as the largest petroglyph site in New Mexico and is estimated to contain more than 100,000 petroglyphs.

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Alyssa Guerrero, a recent graduate of Mesa Vista High School in Ojo Caliente, draws cupules and other markings on a basalt boulder Friday at Mesa Prieta. Guerrero was an intern with the Mesa Prieta Petroglyph Project summer internship last year and is helping out as a student mentor this year. The students said the cupules they found on the boulder may have been created during the Archaic Period, which would make them thousands of years old.

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A panel with petroglyphs of multiple human figures on a basalt boulder on Mesa Prieta. There are an estimated 100,000 petroglyphs at Mesa Prieta. Approximately three-fourths of them were created by the Tewa people during the Pueblo IV (Ancestral Pueblo) Period that lasted from roughly 1300 to 1600 A.D.

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From left, Zakaila Tapia, an incoming junior at Santa Fe Indian School, Mary Sandoval, who will be a senior at McCurdy Charter School, Damian Valdez, an incoming senior at Mesa Vista High School, and Alyssa Guerrero, a recent Mesa Vista High School graduate, work on recording cupules and other markings on a basalt boulder as part of the Mesa Prieta Petroglyph Project summer internship program on Friday, June 14, 2024.

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Matthew J. Martinez, executive director of the Mesa Prieta Petroglyph Project, holds a grinding stone found at Mesa Prieta on Friday, June 14, 2024. Martinez is helping lead a two-week summer internship program through the nonprofit organization that immerses students in archaeology and the history of the region.



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