Pilot_DAR wrote:
Otherwise, and more commonly, there are a number of abandoned railway lines which crisscross the land in my area, and even though farm fields have now plowed them under, the route is still decernable, and it’s interesting!
It’s hardly archeological, although it might be some day, but I found it interesting that the bed of original transcontinental railroad can be seen easily in the US.
In many places the rails are long gone, bypassed due to rerouting across what were once formidable obstacles. A good example is the route on the east side of Promontory, Utah where the east and west sides originally met. Nowadays the route goes right across the Salt Lake instead. There’s a tiny town near Promontory called Corinne, just one bar left, which was once a bustling place that specialized in shall we say “servicing” the railroad workers and the like… not what one necessarily associates with Utah 
Problem is that 90% + of the footage is edited out. And I don’t keep the originals, because they are huge. The trip to Kastelorizo was something like 1000GB.
Taking good photos of ground sites in a Robin is hard
Is there a reason? I get reasonable ones out of my TB20 – obviously at an angle; can’t look straight down. The main thing is decent windows with no damage and not much curvature in the lower portion.
But Peter made a lot of hours of video from cross country flying all over Europe.
Maybe there’s someone who could add (part of) his lifetime to review these and search for any anomaly?
I read in my grandparents house in Normandy a book of airborne Archaeology. It was an association (non-profit group) who flew methodically over all the ‘Eure’ department in aeroclub Robins to look for ancient sites and the book gathered their results. Plenty of roman and gallic sites !!
Map of ‘Eure’ :
Taking good photos of ground sites in a Robin is hard. I can’t imagine how much fuel they burnt and how many sick bags they filled 
An Englishman once told me:
You’re from Canada, where 100 years is “old”. This is England – where 100 miles is “far”. He’s right. So, in Canada archaeology is not so easy…
But, I did!
I noticed this while touring in the very far north of Labrador. I knew it was man made, but it was literally a hundred miles from any settlement. After some research, I was told it was an ancient Inuit settlement, which would be thousands of years old.
This is me beached on the shore across the lake from the Inuit settlement, but the shore at the settlement was too rocky to take the plane (and that remote lake would be a really bad place to punch a hole in the hull!) I considered swimming across, but that water is cold, I was entirely a long way from any help, and I could not have taken the camera, so I appreciated it from across the lake.
Otherwise, and more commonly, there are a number of abandoned railway lines which crisscross the land in my area, and even though farm fields have now plowed them under, the route is still decernable, and it’s interesting!
I photographed what I thought was an ice age geological feature.near a mountain.
I emailed it to a Geology institution, asking what it was
. They thought it was archaeological. I contacted an Archaeological institution.
After ground investigation, they asked me not to publicise it.
I agreed, saying I was as or more embarrassed as they were.
This is really interesting.
Around where I live there are many Roman remains which are totally gone unless you know what to look for.
But things can disappear pretty well in 100 years, too. Nearby there are remains of a funicular railway which, while visible from the ground, are probably totally missed by most walkers.
Nowadays I would be extremely careful doing this in the UK, due to the new CAA infringements policy which is absolutely strict; ATC are not allowed any leeway, and on your 3rd occassion you probably get your license suspended. I’ve done various flights in years past, to photograph interesting things, but would not risk it now. With any flight like this I would have a 2nd person watching the GPS 100% of the time, not talking and not looking out of the window.
High-wing is certainly better but if you have clean and undamaged windows in a low-wing, that also works fine. Aerial photography is a whole other topic
The first use of the aerial survey was back in 1926 when Squadron Leader G Insall VC discovered the site of Woodhenge on Salisbury plain.
I believe that woodhenge was a sort of prototype for Stonehenge.
Arne wrote:
I regularly see what looks like building outlines in fields, but wouldn’t know what to do of it, if they are already known/researched or not, let alone who to talk to.
If you see something like that in Sweden you could start by looking at this website: Fornsök
If you zoom in you will find a lot of stuff that has been discovered so far. You will probably also find contact details there if you find something new.
This is a very interesting topic! :)
A closely related discipline is searching for cave entrances in karst regions. In winter, they emit steady streams of warm air, which can be found using airborne thermal imaging. Our airport sits on the edge of Bohemian karst province – if anyone has a thermal camera and wants to try, let me know.
