Look what I found with ACP.

Was out charting a lake today, uploaded the data and found this on the lake. This is an old strip mine. Looks like shovel scopes, what do you think?

Attachment 199945

Attachment 199949

Well now ... That's about the coolest contour lines I've ever seen ...

Good job Hanr ...

Rickie

Cool stuff. There should be some fish around that ditch.

Could be strip pits, that is cool!

That's where the Crane was stuck and had to be winched out!!! LOL!!!

I do plan on fishing it next weekend and see what's down there. Wonder if I can find it on the side scan?

Might be where the old dredge was....I've flown over that place a time or two, always wanted to fish it

I am leaning towards Maxwells idea. Cant tell the terrain depth differences but these marks are parallel like tracks. If they were shovel or drag line marks they would intersect at an angle.

I believe our strip mines were dug by dragline machines.
https://www.youtube.com/watch?v=v9qKCaClZwo

Video will give you an idea on how it works.

Showed it to a couple of in-laws over the weekend. There thinking its the trail to the bottom of the pit to get equipment in and out of the pit. I thinking it's more vertical, like the side has been notched out. It doesn't appear like the depth changes. Thoughts?