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Coming Events

(Observatory is open to the public
ONLY for scheduled events).

Star Party

Saturday, July 27

Solar Observing: 11am-3pm
Star Party: 8pm

Camping in Space

Tuesday, July 16, 8pm-Midnight

Join RFO as we celebrate the 50th anniversary of the launch of Apollo 11! We will have a lecture then open the telescopes to view the moon and several planets. The lecture will discuss how the astronauts traveled to the moon in a "space tent"—the Command Module—about the same size as an average campground tent.

Night Sky Classes


Jun. 3, Jun. 24, Jul. 1,
Jul. 22, Jul. 29, Aug. 26

A series of six classes focusing on the Spring constellations and their deep-sky objects. Classes last about an hour with telescope observing after class. For prices and more information go to our Classes page.


Want to help us keep our doors open?


RFO at night

Above: The Observatory at night. Photo by Mark Hillestad
Top right photo of Refractor Telescope by Jerry Telfer


Rent an

Yes, you can!
Treat your family, friends,
or group of up to 50 people
to a night with the stars!


Weather Forecast

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Sugarloaf Ridge
State Park

"Team Sugarloaf" operates Sugarloaf Ridge,
including the campground. Five nonprofit organizations formed a unique partnership that has worked tirelessly to keep our park open.  

Partners are: Sonoma Ecology Center; United Camps, Conferences and Retreats; Valley of the Moon Natural History Association; Sonoma County Trails Council; and Valley of the Moon Observatory Association.  

With expertise in campground operations, ecological restoration, astronomy, trails management, and volunteer recruiting and training, Team Sugarloaf is creating new opportunities for Sugarloaf Ridge and its visitors.  Visit sugarloafpark.org for more information.

Come to stargaze and camp at Sugarloaf Ridge!