Saw this flying into Charlotte Douglas - what is it? Forestry?

I saw this structure flying into Charlotte airport (before also seeing Carowinds). What is this facility?

https://preview.redd.it/pkbzccyhf9ug1.jpg?width=680&format=pjpg&auto=webp&s=eb3343210fcba643d85e39085c928ade9108fbfc