Biwabik Iron Formation at the LTV Mine
The iron mines below have been inactive
for at least 3 years at the time of the photos. Very little vegetation
has established itself in the hard slate rock called taconite. The mine
originally operated by erie Mining Company was the second mining
operation to mine taconite in 11 different pits starting in 1957.1
I believe most of these photos are in LTV Pit 5. Notice the rock
cleavage that results in parallel faces of both the
rock shelf and the large samples that were too large to carry in the
photos below.
