Strange earthworks - Aleutian islands

Hi!
Sure, I have seen these before around GEC Forums (probably on the old bbs), but could not look up anything related so far... 

Bumped into it on Instagram again and while I have asked for coordinates, thought to share also here hoping, someone will remember. 



Just cannot recall... Only that there are more such locations over there...

Could anyone tell, what were these?

Thanks!

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Edit:
Not the location on the above image so far, but my first (similar?) finds from Umnak Island:
Aleutian scars.kmz (1.02 KB)

It is Fort Glenn Army Air Base (historical site). >>images of a Google Image Search

Well this explains a lot:
Empty- and filled "pits" are barracks positions, smaller ones can be personnel tents positions, the airstrips and plane stands are obvious, but original question about the exact function of the elongated rectangular structures still is up... ("long peels" in my placemark set)

While browsing around searching for the location, on Atka island I have bumped into a GEC layer mark from 2011 by larryc1 . >>52.02932, -175.13578<<

A B-24-D Liberator is on the ground in this immediate vicinity. It should be visible although I suspect that it is under the cloud cover.

B-24-D in this area. # By: LarryC1 # Date: 2011-04-25 # From: World War Two in the Aleutians. - 3 Message(s) # Google Earth Community

Well, I can report that the clouds are gone! ( : 140 meters to NNW of Larry's marker, B-24-D Liberator wreck with torn off tail is clearly visible on 6/2012 GE imagery.



Also in-situ photo available in GE Photo layer 600 meters NE of the site.

Excellent!! Thanx, syzygy

The whole air force base can be seen here.. .https://ourairports.com/big-map.html?airport=US-0256
What seems to me is that all  buildings more unique than  small barrack buildings  are gone.. removed.  The small barracks (eg nissen hut ) are rectangular dots.

 While people did set up tents, they wouldnt leave lasting evidence .. 


What did 10,000 people do   with only nissen huts ?  
Well there were would be halls... mess halls,  ablution blocks.. admin,medical blocks. We have to find those.. so  go to modern aerial view of the site  and find the mess halls and shower blocks ?
The barracks, and all facilities are spaced out is for safety, expecting attacks ...  so that an attack on the base will produce less damage.. fire won't spreed, carpet bombing won't work,
targetted bombing would be unlikely to hit any target... 



So the larger rectangular areas are the halls and facilities which  WERE removed, smaller circular patches might be ablution facilities, or the  septic tanks for kitchens and ablutions.

Colour can also be deceptive. The land growing more vegetation may be growing the tough grass, that forms a brown top ,from modern photos. Whereas the growth on a concrete pad may be moss or plants which keep a green leaf. So the more green area can be less vegetation and more concrete or rock or poor soil ? 

There are two high value targets at an air base.. the radar facility and the their  ammunition and fuel  storage ?  Some dots may be the opening to the underground facilities, housing the radar equipment, being high value, or  the storage of ammunition , fuel... 

Oct 17, 2022 23:02:47 GMT tafrawti said:

Feb 13, 2022 23:49:56 GMT syzygy said:

Just cannot recall... Only that there are more such locations over there...

Could anyone tell, what were these?

The circular holes look very like bomb craters which may help pinpoint the exact location.

I think there were some air attacks on Attu during the battle to retake the island from the Japanese in WW2. The green colour certainly matches current imagery well

Certainly, there are some similar-looking - but - fundementally different - circular hut holes on that island, from 1950s occupation. Near the air base as I recall.
The shallow "hut craters" seen near the 1950s air base on Attu are caused by damage to the delicate subsoil (permafrost on some islands, sub-arrctic subsoil on others)
When clearing and leveling the land for the creation of huts, the unwanted earth was piled up around the edge of the site. This means snow drifts and ice accumulate over the years around these huts, more so than the original terrain. 

Over time, the extra ice and water damages the subsoil which waterlogs and tends to destabilise. On Attu, near the old airbase, you can see the 1950s? metal huts in some circles, as well as the rectangular huts more from the 1940s.

However, your circles are small and appear waterlogged in the centre, suggesting bomb or shell craters (from naval gunfire support?) I wonder if they are on Attu but away from the more modern air base - the island saw a lot of action with amphibious landings from different directions. The craters could also be from ordnance disposal at a later date. 

I know there was US underground atomic testing in the early 70s on one of the Aleutian islands, though I don't think there was any bombing or shelling tests with that.

My only GE browsing of that area was quite a few years ago to plan an awful ferry flight with a pilot friend but eventually it was cancelled, which pleased me. 
EDIT: FOUND EXACT LOCATION    52°55'21.5"N 173°14'47.6"E  52.922627, 173.246552   near "ATTU VILLAGE" NE end of Attu Island