This segment is not as niche as it used to be and is frequently abused for enormous tax benefits now. There doesn't need to be any real economic or environmental value to the land, you can just pay someone to do a fake survey/appraisal and assign an astronomical value, and then not pay any taxes because you're now forgoing all that fake value with your conservation easement.
> One example: the former Millstone Golf Course outside of Greenville, South Carolina. Closed back in 2006, it sat vacant for a decade. Abandoned irrigation equipment sat on the driving range. Overgrowth shrouded rusting food and beverage kiosks. The land’s proximity to a trailer park depressed its value. In 2015, the owner put the property up for sale, asking $5.8 million. When there were no takers, he cut the price to $5.4 million in 2016.
> Later in 2016, however, a pair of promoters appeared. They gathered investors who purchased the same parcel at the market price and, with the help of a private appraiser, declared it to be worth $41 million, nearly eight times its purchase price. Why? Because with that new valuation and a bit of paperwork, the investors were suddenly able to claim a tax deduction of $4 for each $1 they invested.
- https://www.propublica.org/article/conservation-easements-th...
I think the law is still a good idea, but like many things it has been ruined by the rich and will need to be reformed or eliminated.