This is a complicated question, the answer to which likely depends upon the covenants relating to your property, it's historical use, and/or the rights and interests of the other homeowners regarding ingress and egress to the national forest. Generally, an HOA may not impose obligations on individual homeowners' lots if the covenants do not permit it. Sometimes, however, portions of a homeowner's property may be deemed a "common element" or "limited common element" over which the HOA possesses some measure of control. Also, if other homeowners have historically used the subject property for ingress and egress to the national forest, they may have acquired the right to continue to do so. Again, this can be a very complicated issue, so it makes sense to consult with an experienced property attorney.