The Astronomy Connection

San Francisco Bay Area Astronomy => Observing Sites => Topic started by: John Pierce on August 16, 2014, 11:15:05 PM

Title: Lake Sonoma
Post by: John Pierce on August 16, 2014, 11:15:05 PM
Description: An Army Corps of Engineers facility and park near Cloverdale
 
Directions:  Take 101 N to Geyserville (about 20min north of Santa Rosa), take the Canyon Rd exit and turn left (go under the free way). Take Canyon rd until it ends at a T with Dry Creek Rd, and go right onto Dry Creek Rd. Follow this until it reaches the Lake Sonoma Recreation Area. This involves a sharp left turn, over the spillway bridge, at the entry to the park. Drive through the lower park area, and up the hill. Continue on this road, past the Skaggs Spring turn off, onto Rockpile Rd. Follow Rockpile Rd, over the bridge across the lake, and go up the hill after the bridge. Look for Grey Pine Flat turnout, on the right, if no one is there, continue on to Lone Rock Flat about 1mi further on (on the right also). Lone Rock is the preferred site, as it has better elevation and horizons, but is sometimes booked by equestrians.
 
Website: Lake Sonoma Army Corps Of Engineers
GPS Location:

Elevation: 1150 ft.
Clear Sky Clock: http://cleardarksky.com/c/SonomaCAkey.html
Weather: Lake Sonoma NOAA
Owner: Army Corps of Engineers
Use Policy: Open to the public. Call ranger in advance if arriving after dark at: 707-431-4533. You can use this # to request unlocking of parking lot entrances (e.g. Lone Rock) for observing.
Title: Re: Lake Sonoma
Post by: Davids on August 19, 2014, 08:24:57 AM
Link to the Lake Sonoma clear sky clock:
http://cleardarksky.com/c/SonomaCAkey.html
Title: Re: Lake Sonoma
Post by: John Pierce on August 19, 2014, 11:17:28 AM
yeah, I need to go back and fix all the links on these, as well as google links to the site locations.   

time, keeps on slippin' slippin... into the FU-TURE.   
Title: Re: Lake Sonoma
Post by: Davids on August 19, 2014, 04:38:46 PM
I wasn't criticizing,  I don't think the Lake Sonoma page ever had the clock link.  No worries, just thought people would find it useful.
Title: Re: Lake Sonoma
Post by: Dwight on July 27, 2015, 10:54:08 PM
When people go to Lake Sonoma, is it usually just for an evening, or do they camp overnight?  If camping, which are the dark(er) sites?  Has anyone ever stayed at that cabin that is there with the tent sites?
Title: Re: Lake Sonoma
Post by: sgottlieb on July 28, 2015, 10:52:56 PM
Generally, amateurs observe/image at the Lone Rock parking lot, which is ~3 miles beyond the bridge on Rockpile Road.  The gate to the lot is left unlocked these days (we used to call the Ranger's office in advance to request this).   There is no cost and plenty of room, but overnight camping is not allowed.  People pack up and leave at all hours of the night, though.

As far as staying overnight, I've observed a few times with several others at the Group (Equestrian) site within Liberty Glen campground, but the cost has been raised significantly to $100/night and I haven't returned. The entire campground was closed for quite awhile due to budget cuts but I assume it's open now.  Haven't heard anything about a cabin.
Title: Re: Lake Sonoma
Post by: shneor on December 03, 2017, 10:49:03 PM
Has anyone observed here since the fires?
Title: Re: Lake Sonoma
Post by: dnsmiley on December 04, 2017, 05:24:21 AM
Yes, see my observing report 10/21/17.
Title: Re: Lake Sonoma
Post by: shneor on December 04, 2017, 11:29:27 PM
Thanks! The sky at Lone Rock often seems to wash out later (sometime after 11 or midnight). Nice report.
I'm thinking of observing there this Saturday night depending on weather.
Title: Re: Lake Sonoma
Post by: dnsmiley on December 05, 2017, 05:39:43 AM
Hi, I am planning to go this Saturday Dec 9 as well, so far weather prospects are good. I will contact some friends and post an observing intent later this week. Although last quarter moon comes up around midnight, with the early sunset there's still five hours of dark sky.