Also may participate influences of presence of various forms archaeological remains (not only cropmarks), that are located underground, as well as geological elements and anomalies.
Pia inaweza KUSHIRIKI Mchanganyo wa uwepo wa mbalimbali Inabakia aina Archaeological (si tu cropmarks) Kwamba ziko chini ya ardhi, kama vile vipengele na anomalies kijiolojia.