They tell you which tribe they represent, but that tribe might have lived 150 miles away... Well, all I've got to tell you is that they seem to know an awful lot about land they've never visited. There's no telling how they were "discovered" to be local tribal representatives (much less certified as such), seeing as many of those tribes have been gone for over a century. Sometimes they tell patent lies about the way the land was "before the white man came" (usually detailing how it was when they were kids around 1940). It's fascinating how huffy they get when confronted with historical facts that refute their claims.
After the tribes get done with you, then there are the archaeologists. In Santa Cruz County, anything on your land over 50 years old, constitutes a possible archaeological site. Then there's the biotic survey... the geotechnical report... the geological hazards assessment... the soils report...
Does the geotechnical include the Tsunami studies as now required in Eureka ?