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Aerial Photos - Marin County
Posted: Fri Aug 23, 2013 2:56 pm
by LS_8750
I'm looking for aerial photos of Highway One along the shore of Tomales Bay.
Ideally mid 1960s and mid 1970s.
Any input would be great.
Cheers.
Clark
Posted: Fri Aug 23, 2013 3:13 pm
by radicalfil
You might check with Caltrans District 4 records and they may have some historical photos, either a inventory set or a photogrammetry project.
Posted: Fri Aug 23, 2013 6:34 pm
by Anthony Maffia
Contact Photo Sciences in Emeryville, formerly HJW iirc.
Historic Aerials can be found at....
Posted: Sat Aug 24, 2013 1:20 pm
by geoshale
http://www.historicaerials.com/
You look up aerials for most of the US, and they can have multiple years (hence the historic part of their name) for the same area too. (I just looked, and they only have 2005 - sorry)
Its also neat to look-up where you live(d) and see the changes over the years..
Posted: Sun Aug 25, 2013 8:57 am
by land butcher
Google earth has historical aerials too.
Posted: Sun Aug 25, 2013 9:33 am
by Peter Ehlert
land butcher wrote:Google earth has historical aerials too.
He is looking for older stuff, I believe Google Earth photos only go back about 10 years in most areas... but very handy for recent changes
Posted: Sun Aug 25, 2013 10:08 am
by LA Stevens
I have one set of photos from 1976 of the whole county, but your best bet is Caltrans if you are along the highway that existed in that time frame. They have inventory aerial photographs of all of the highways taken every 10 years, I believe. My photos are 1†= 1,000’.
The County of Marin also had inventory photos taken every 10 years. It has been 20 years since I looked at them. Hopefully, they did not throw them out with all of the unrecorded maps they used to have.
I attached the area near the town of Tomales, taken from my phone to give you an idea, since I had the book of photos in my office for another project.
You didn't say vertical photography..........
Posted: Mon Aug 26, 2013 10:27 am
by Johnston
.. so you might try californiacoastline.org
Posted: Mon Aug 26, 2013 6:02 pm
by land butcher
In OC google earth goes back 20 years. 1994
Posted: Tue Aug 27, 2013 6:33 am
by Rob_LS
I'd have to agree with Larry - Caltrans HQ Office of Photogrammetry (OoP) is the definitive source of aierial imagery information for Caltrans routes:
http://www.dot.ca.gov/hq/esc/photogramm ... urces.html
http://www.dot.ca.gov/hq/esc/photogrammetry/resources.html
Check out the "CONTACTS" link in the left margin -
Norene Nakashima, (916) 227-7680
Posted: Tue Aug 27, 2013 6:52 am
by Stephen Johnson
Another source is the US Soil Conservations Service of the USDA.
Posted: Tue Aug 27, 2013 10:39 am
by LS_8750
Let's not forget the State Lands Commission. Thanks Evan.
Dylan Gonsalves gave me a nice lead as well: earthexplorer.usgs.gov
If I could only find a set from about 1965. Perhaps Caltrans or perhaps SLC. The search continues.
Oh, and have a look at the attached photo. A little piece of forensic genius (that we all know of). Overlaying paper printouts of aerials and then raising them up into the sunlight.
Cheers.
Clark