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the Degree Confluence Project
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United States : California

10.4 miles (16.7 km) SW of Inverness, Marin, CA, USA
Approx. altitude: 102 m (334 ft)
([?] maps: Google MapQuest Multimap topo aerial world confnav)
Antipode: 38°S 57°E

Accuracy: 3 m (9 ft)
Click on any of the images for the full-sized picture.

#2: 360-degree panorama #3: Waves breaking on the west shore #4: Mike & Raj on their first confluence #5: Terje doing the Zero Dance #6: Point Reyes Lighthouse #7: The lighthouse clockwork #8: A migrating Grey whale very close to the cliffs #9: Looking back towards the beach from the lighthouse area #10: Track log

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  38°N 123°W (visit #7)  

#1: An Iris growing exactly on the confluence

(visited by Terje Mathisen, Mike Haertel and Raj Parihar)

25-Apr-2004 -- Drove from San Jose, going east of the Bay before crossing the bridge to San Rafael. There we started following Sir Francis Drake Dr which goes over the hills before merging with Hwy 1 on the other side.

Sir Francis Drake then leaves Hwy 1, and we followed it, first to Inverness, then it turns west again and we started to see signs pointing at the Lighthouse.

As we got close to the confluence, we passed a farm, and then started up a steep hill. Near the top of this hill we were a little over 400m from the point, so we parked the car and started walking almost due west.

This confluence was quite easy to locate exactly; with WAAS correction data available for all the satellites we got error estimates between 2 and 3 meters.

After getting back to the car, we drove a few more minutes, so that we could visit the lighthouse itself. The guide told the story about how the mechanism was imported from Europe, taking a couple of years to get here and be installed. He also told about how this seashore is the migration route for the Grey whales, and as we walked back up the stairs, we got to see about 8 different whales, mostly in the form of pairs consisting of a female guarding a calf.

On the way back we drove Hwy 1 all the way to the Golden Gate bridge, crossed it, and went on south to San Jose.


 All pictures
#1: An Iris growing exactly on the confluence
#2: 360-degree panorama
#3: Waves breaking on the west shore
#4: Mike & Raj on their first confluence
#5: Terje doing the Zero Dance
#6: Point Reyes Lighthouse
#7: The lighthouse clockwork
#8: A migrating Grey whale very close to the cliffs
#9: Looking back towards the beach from the lighthouse area
#10: Track log
ALL: All pictures on one page (broadband access recommended)
  Notes
Located at the tip of the Point Reyes Peninsula in Point Reyes National Seashore.