Lighter than what I am made of, More of me is hidden Than is seen. What am I?

An iceberg would be the correct answer because they are hidden under water

The region of the united states where beef and hog production is prevalent is the midwestthere are 12 states in this area including  illinois,  indiana,  iowa,  kansas,  michigan,  minnesota,  missouri,nebraska,  north dakota,  ohio,  south dakota, and  wisconsin. all of these states are known for their meat and such products.