Stone

Thirteen16oz  cans of beans + one 16oz can of corn = one stone.

Two stones = one quarter.

Four quarters = one hundred weight (cwt), that's 112lbs.

Twenty cwts = one ton, that's 2240lbs in old money.

       So perseverated my feverish brain when I learned today's Mono Monday challenge set by Nickimags is STONE. This is infected by silly Saturday.

EDIT: Extra is one mule deer stranded one one side of a road with her companions on the other.