<P> Mother lode is a principal vein or zone of gold or silver ore . The term is also used colloquially to refer to the real or imaginary origin of something valuable or in great abundance . </P>
<P> Mother lode is a principal vein or zone of gold or silver ore . The term is also used colloquially to refer to the real or imaginary origin of something valuable or in great abundance . </P>
where did the term mother lode come from
where did the term mother lode come from
a principal vein or zone of gold or silver ore
a principal vein or zone of gold or silver ore