A couple Sovereign's, Excalibur II, Eureka Gold, Falcon MD20, TM808, Sierra Madre, 5900 DIProsl, Garrett ADS III with Bloodhound, Fisher 1280x, Equinox 800
I would at least probe them and maybe swing a detector over it quickly. A state archaeologist usually won't come to a site unless you have already uncovered something, bones, pottery, etc. When in doubt, dig it out.