FWIW, I have so much experience with various SEMs that my boss used to say that I should own stock in Polaroid! '-)
And, at present, I'm negotiating to acquire LiDAR data on a huge swath down the eastern side of Texas -- which includes the pioneer emigration route known as ...
No, I'm not that author, but I've worked closely with him for over seven years -- and his book relies heavily on my GIS + image processed cartography...
Much of "the Trace" is on private land, and much of that is in heavily forested areas. Using custom post-processing on satellite imagery, I have had fairly good success in detecting faint remnants of the Trace .
But, by applying those same custom "spatial filters" to good LiDAR "Bare Ground" data, the results are spectacular!!
The main drawback to LiDAR until now has been the exorbitantly high co$$$t of acquiring the data -- even if it was already created and stored in some company's data bank. That appears to be about to change, with the advent of "Open Source" data.
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If anyone's interested, I'll see if I can find and put some of my A-B satellite vs LiDAR examples up on my webdomain for display here...
I’m interested
Here’s a link to one I still haven’t posted:
Micro to macro mapping — Observing past landscapes via remote-sensing
Fri, Feb 09, 2018
http://popular-archaeology.com/issue/winter-2018/article/micro-to-macro-mapping-observing-past-landscapes-via-remote-sensing