Looking for some insight on how these early mapping were produced? Very impressive detail given the mountainous terrain of the area.
1884 -They mapped Shasta at the 100' contour level.
(USGS has a ways to go to pull all of their scanned quads together into one place)
Prior to that mapping effort, this was the best available mapping, issued in 1866.
Then you jump back to 1834...getting fairly crude at this point.
Mt. Shasta appears as "Snowy Mountain"
Great early maps.
That 1834 map predicted the future ("High California") but failed to place a leader from the label to Humboldt & Mendocino Counties.
Well, we do have the city of Weed.
Insight Wanted
> Looking for some insight on how these early mapping were produced?
Back to your opening sentence..What do you have?
I have always wondered how they did their work.
Interesting reading available on Google Books....
"Topographic instructions of the United States Geological Survey" 1912
"USGS Bulletin 227" 1904
I am interested in the instructions that would have been in place prior to 1912 (1884)
of course you do! Alaska, Washington and Colorado should too!
What a Great Publication!
There are some awesome photo's in there, too. Back before OSHA, and when men weren't scared to get a job done, they found ways to do it, not excuses! 🙂
Insight Wanted
Thank you! I will have to find some time to read that one for sure. Looks like interesting stuff.
Insight Wanted
My appreciation to all your help, will spend the time to make the read. This material is a great find, thanks for the photos and links.
I would like to share some of this on my company FB page. The page has attracted a couple hundred likes from surveyors outside the US. This interest primarily comes from the fascination of boundary surveying and US cadastral history. The international survey community appears to be servicing the construction/mining almost exclusively.
I promote 'Surveyor connection'; the connection network makes for informed and better surveyors.
Greg Spurlock,
Spurlock & Associates
