I think if you were looking at it from the side it would look like a weird sparse forest. 3 or 4 layers might give eenough illusion if you have some brush or other greenery mixed in.

Where I grew up in nd tree lines were more for wind breaks than described here.

Here’s a bit a little south of Mandan, https://maps.app.goo.gl/fkns9wFp8NsnCvFy9

Trees don’t really do well around here. And bear in mind this is the more woodsy part of nd. Past this it’s mostly grasslands even more.