On my rough ground goats have been great for getting things under control. Still there are areas that are just infeasible to fence, or too precarious to bother. These areas are often not only hard to access, but generally so overgrown that virtually no sun hits them. This isn't just my property, there are so many abandoned properties like this. What does one do with land like this? Grow ginseng.
The seed is expensive, and can be a gamble. Wild grown ginseng can fetch as much as $200 or more per root on the Chinese medicinal market, but these roots are 5 years old, at a minimum, and often much, much older. For this reason, nobody talks about it. How could you risk planting something like that and have someone poach it on you 4 years in? Well, small isolated plantings spread out all over is a place to start. Throw enough mud at a wall and some of it will stick.
Here are some first-year seedlings planted in a 6" grid:
For a modest investment, a collective acre or two can be planted like this in waste areas. I've purchased seed from several purveyors over the years, and by far the best stock has been from Wild Grown ().Good luck.