The only good thing about drought conditions is it reveals lost structures through crop marks and so on. I must get out and have a look around with the drone, but you need some sort of a plan about where to look. Our whole infrastructure needs to shift to continental levels of drought and flood resistance, but that’s no guarantee as we see.
The revealed structures or works can be almost anywhere. Here is a shot of one of my local parks (West Harrow) with some interesting lines. Not sure what caused them, may be war time dig for victory? Interested to here if anyone has any good ideas or more examples.
Any how makes for an interesting shot of what is normally not very exiting park. Also these lines were not obviously visible on the ground.
These patterns, known as “cropmarks” or “parch marks,” appear when extreme heat dries out grass, revealing buried structures like walls, ditches, or old pathways beneath the soil.
While they can sometimes be caused by repetitive mowing or maintenance patterns, these intricate, non-linear designs strongly resemble archaeological sites, such as former Roman farms, settlements, or gardens.
If found in the UK or similar regions, these markings are likely revealing buried historic features that are usually invisible.
To get more information about this specific site, consider contacting a local council or archaeological society to see if the area has been surveyed.
interesting indeed. I did a reverse image search using AI of your photo and this is what it came up with
The geometric markings visible in the dried grass at West Harrow Recreation Ground are cropmarks highlighting old subterranean infrastructure, most likely a historical drainage system or the remains of wartime allotments. [1, 2]
When prolonged dry weather or a heatwave bakes the ground, the grass dries out and turns brown at different speeds depending on the soil depth beneath it. [1, 2]
Why These Lines Appear
The Archaeology Behind It: The straight, criss-crossed lines reveal variations in the soil profile underneath the turf. [1]
Subsurface Structures: If there are old gravel-filled drainage trenches, water pipes, or old foundations right below the surface, the topsoil layer is much shallower. [1, 2]
Moisture Depletion: Because the soil is thinner over these structures, it holds far less water. When a drought hits, the grass directly above these hidden lines loses its moisture and scorches first. This creates a perfect “ghost map” of what lies beneath, which normally remains completely invisible when the lawn is green and healthy. [1]
Most Likely Historical Origins
Given the location in West Harrow Recreation Ground (which was established as a public park between the 1920s and 1930s), these regular patterns point to two primary possibilities: [1]
A Network of Land Drainage Pipes: Public parks and sports pitches often feature extensive herringbone or grid-pattern sub-surface drainage systems to prevent waterlogging during the winter. [1, 2]
World War II Allotments: During the “Dig for Victory” campaign in the 1940s, large sections of public recreational grounds across the UK were temporarily divided into highly structured, straight-lined rectangular plots for residents to grow food. The old boundary paths or compacted soil borders of these plots frequently re-emerge as cropmarks during hot summers. [1]
Out again last night for golden hour, this time “over the border” into Gloucestershire for a gorgeous light show on top of Painswick Beacon, near Stroud.
The main subject of the shoot was the ancient hill fort of Kimsbury Camp which I’d never visited before.
It was built between 400 and 100 BCE and served as a defensive stronghold for local Iron Age tribes until the Roman invasion in 43 CE. Archaeological finds, including pottery, coins, and a carved altar stone likely depicting Mars, prove it remained occupied by the Romans through the 3rd century CE. In 1643, King Charles I used the strategic hilltop to station his royalist army during the historic Siege of Gloucester.
While I saw from Dronescene it was located in the middle of a golf course, I hadn’t realised the inside of the fort was actually part of the course!
First proper flight with Neo 2 (I sent the Neo 1 back to Amazon under the return window as the camera wasn’t really up to snuff).
Neo 2 much better and will keep it