Winter Solstice?

 

The east end of the red line above is very much disturbed by an access road,

across from which is a bedrock cliff:

There's a little sweet spot on the cliffside, where the sun warms a little place to sit,

where I know I've watched a couple Winter Solstice Sunsets:

I almost walked up there yesterday, but it clouded up.

I can't confirm that the sun sets directly over that row of stones.

The western terminus of that row of stones or snake effigy:

I edited these new images into an older post:

https://wakinguponturtleisland.blogspot.com/2020/10/protective-spirits-guardian-snakes.html