Set a good example. Never dig in an archaeological site or collect artifacts except under the guidance of a professional archaeologist. Leave any artifact you find in place and report it to an archaeologist. This will allow the archaeologist to contact the landowner about saving the artifact and to document its precise location. Teach your family and friends about the importance of site preservation.
Most people have no idea that recreational digging is destructive and illegal.
Kodiak's high site density reflects its large prehistoric population. Native people have inhabited the archipelago for at least 7,500 years. When Russian traders arrived, there were about 15,000 Alutiiq on Kodiak - more than the modern population of the archipelago. Kodiak sites are remarkably well preserved. Most contain bone, ivory, and antler tools, and many contain some wooden artifacts.