You're probably correct about the geography, however, the greatest threat against the family farm is your government through the EPA. They have effectively "taken" resources through the power of government that many cannot afford.
Just try cutting down a tree in order to plant a crop today...
Wow I've seen those signs on farms in areas that have ponds or good size creeks running through them there's outrageous buffer zones to keep farmers form planting or spraying around them ....funny part is the farmer gives them permission to create the zone and are compensated for some of the loss they even have some places you cant even walk on let alone use for farming ..