Precautions: 1. Be careful where you are. BLM property by federal law is protected from scavaging, unless you are a licensed Native American Artifact Expert working on a specifically permitted project. If you mistakenly remove or DISTURB a burial site or prehistoric village site, for instance, and noticed by BLM personnel or other government managers, you could be charged with FELLONY.
2. Be careful what you touch, and how. There are bad people and bad things outdoors, snakes, scorpions, and booby trapped caches have been known to cause serious injuries.
Use a stick or probe 1st. Never let a child stick his face or hand into a dark whole in the rocks etc.
3. Be aware of who is watching your activities. You wouldn't want to be caught trying to explain why you are poking around the Bank, or Public Monument, or Subway, or well you name it, with the FBI and Juan Ashcroft on high alert would you? Think about hou you might appear to be perpetrating a crime while out poking about, your intentions are known only to you and are not known to the hyped up, scared public.