Owners / Partners

Mel Helm, Geoff Stone, Larry Van Vleet, Keith Quattrocchi

Mel Helm, Geoff Stone, Larry Van Vleet, Keith Quattrocchi

We bring our collective experience and enthusiasm to the operation of Sierra Remote Observatories (SRO). Since 2007, SRO has offered superior-quality seeing to our clients, located in a protected area of the Sierra Nevada mountains in the Northern Hemisphere.

To our existing clients, we are grateful you have placed your trust in us for your hosting and imaging needs. And for new clients to SRO, we extend to you a warm welcome! We look forward to supporting your hosting needs for years to come.

All the best,

Larry, Mel, Keith, and Geoff

      On-site Technical Support


Evan Cornelson


administrative Staff


Anna Helm

Anna heads up all things related to Accounting & Billing, for both clients and the SRO business.

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Gail Overstreet Stone

An educator for more than 30 years, Gail leads Education & Outreach efforts for SRO.




Supporting Our Communities

SRO believes in supporting our science education communities, as well as the mountain communities in which we operate. To this end, we are proud to serve as sponsors for the following good works:

Society for Astronomical Sciences (SAS)

We are delighted to extend our sponsorship to the annual SAS Symposium on Telescope Science, held every year in June. The Symposium highlights the latest astronomical research, and has become a premier event for both connecting amateur astronomers and for building pro-am collaborations.

Central Sierra Historical Society (CHS)

SRO is a proud annual sponsor for our mountain communities’ Central Sierra Historical Society’s Partnership in Education Program. CHS offers myriad education programs to schoolchildren through the Central Sierra Museum, based in nearby Shaver Lake, California. This year, the museum will be purchasing tablets to promote interaction through technology in tandem with their cultural and nature education programs, as well as circuit kits for students to learn about electricity and hydro power.

Robotic Telescopes, Student Research and Education (RTSRE)

SRO is excited to be a sponsor for this new conference, which provides a global perspective – integrating past, present, and future efforts – on student research and astronomy education. A diverse array of attendees and renowned presenters from around the world are scheduled to take part in this event.