Sounds like a field of Milo.
Sweet sorghum (milo) stalks are used for producing bio-fuel by squeezing the juice and then fermenting into ethanol.
If it is corn it is most lilely being grown for ethanol production and I will bet there is not an ear on it. Corn that is too close won't make ears.
Gardening at 5000 feet elevation, zone 4/5 Northern Utah, Frost free from May 25 to September 8 +/-