We have several terrestrial Orchids growing at our place in NE Pennsylvania. We are very careful not to give out the locations, except to some very select people. ( not lately, there is simply no interest) But, I find there is little danger of people eradicating ours, they simply would not easily find some of the stands since they are well hidden amongst vegetation and others would make their eyes glaze over from boredom at the sheer mentioning that they exist.
One thing I should mention - it is not a good idea to always make the same path while visiting some Orchid stands in the forest. Deer will simple follow the path we might have created and while doing so decimate any Orchid in the process. Years ago we found 1 plant in spike in the middle of our forest. In our excitement we created exactly one of those paths, so we realized in retrospect. Next visit, the plant was mostly eaten, except for two little blooms which turned out to be most likely Platanthera orbiculata. Unfortunately the plant never came back, we checked every year....
