Expert to present slides of largest petroglyph site in Nevada |

Expert to present slides of largest petroglyph site in Nevada

Physical geologist Jeffry Thelen has been exploring Nevada’s largest site of Native American rock art, and he will present his photographs Friday in Nevada City (see box for details).

Thelen, of Truckee, has been involved in an extensive project to record and preserve the 2,000-year-old Lagomarsino Petroglyph Site in the mountains near Virginia City, Nev. His public program for Friends of Sierra Rock Art will include photographs of rock art throughout the Western United States.

Thelen is an archaeology site steward in Nevada and Eastern California and has extensive experience observing, monitoring and documenting rock art sites. He’s also active in the Nevada Rock Art Foundation.

Included in the program will be the first Friends of Sierra Rock Art Photography Contest and Exhibit. People are encouraged to bring their favorite photograph, 8×10 or larger, framed and ready to hang. There will be a prize for the best entry.

Contact Kate Harper at (916) 218-6087 or for more information or to arrange delivery.

Friends of Sierra Rock Art is a volunteer organization promoting stewardship of Native American rock art sites, primarily in the Northern Sierra Nevada region of California. For more information, visit


WHAT: Presentation of photographs of Nevada petroglyphs by Truckee physical geographer Jeffry Thelen, with dessert potluck

WHEN: Viewing of photographs at 7 p.m. Friday, with program starting at 7:30 p.m.

WHERE: Madelyn Helling Library Community Room, 980 Helling Way, Nevada City


Support Local Journalism

Support Local Journalism

Readers around Grass Valley and Nevada County make The Union’s work possible. Your financial contribution supports our efforts to deliver quality, locally relevant journalism.

Now more than ever, your support is critical to help us keep our community informed about the evolving coronavirus pandemic and the impact it is having locally. Every contribution, however large or small, will make a difference.

Your donation will help us continue to cover COVID-19 and our other vital local news.


Start a dialogue, stay on topic and be civil.
If you don't follow the rules, your comment may be deleted.

User Legend: iconModerator iconTrusted User