What is This?

Plastic containers like what we get some vegetables in?

It looks like a car mat that left an impression in the ice..

It's definitely ice that froze inside of something and has been dumped out, leaving the shape of the container in negative relief, like a mold. I can't figure out what the container was though... will think on it.

Car lights?

My first reaction was a car mat as well.
The more I look at it I'm thinking some kind of cardboard box.

I love these guessing games.

Definitely an ice print but I confess I can't make out what the original was.

Elias is very, very close. A hint: look at upper right of photo.

Was it off of a snow shovel?

No, thanks for trying, Carletta.
I'm going to have to take a photo of what it was.

I will guess that it is a car tire imprint on ice.

Is it from a grill?

Elias beat me to it, i also think its the grill of a car.

Baila, thanks for trying, so far no one has gotten it. I took a photo of the object today.

Here's a hint: it's related to something that happens most Tuesdays and Fridays where I live, so I get it ready on Monday night or Thursday night (or my husband does or one of my boys).

It must be a bin then but I can't see how a bin can be ribbed.

When I think of a bin, I think of something square.

Do you say trash/garbage can?

You are so, so close. That's what this thing is a part of, yes!

Oh, the *lid* of a square garbage can?

Elias, TADA! Award to you and Ilana-Davita. I'll put up a pic of it soon.

ahh I wouldn't have been able to guess. But cool pic.