Don't know about Wyoming. Do know about Id. For quite some time it has been completely and totally against the law to trespass upon any private ground while hunting or fishing.
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A first conviction of trespass on private property carries a mandatory one-year revocation of hunting/fishing/trapping licenses in addition to misdemeanor fine and seizure of animals taken on private property.
This is a misdemeanor charge and the person may be fined up to $1000.00 dollars, six months in jail, or both.
There is no requirement for signage or fence. Even on unfenced open range or timber lands, it is the hunter's duty to know exactly where the private property lines are.
This law has been adopted since the use of GPS and mapping programs have become ubiquitous.
People who choose to brew up their own storms bitch loudest about the rain.
