In one corner is the outline of a hole called the oublette, which
tradition tells us extended down to quicksand and was used for the
disposal of the dead.
M. M. Cohen in his history of the Charleston Volunteers in St.
Augustine "Notices of Florida and the Campaigns" printed in 1836
describes Fort Marion on page 232 he writes, "About two years ago,
one of its many subterranean dungeons, not previously known, was
discovered, and opened, when several human skeletons were found.
The remains of the unfortunate tenants of these vaults were seen
by the volunteers, during our thirty days sojourn at St. Augustine
in January and February".
MOAT.
Around the Fort is a moat 40 feet wide which is now filled in to
the depth of about 6 feet with sand. Protecting the entrance is
the barbacan, which the waters of the moat formed into an island;
access being gained to the barbacan and thence to the Fort by
means of drawbridges. Inside the drawbridge was the portcullis
which ran in a groove still to be seen, directly above the
portcullis may still be seen a hole, some five or six inches in
diameter, through which melted lead could be poured upon the heads
of invaders, should they succeed in crossing the drawbridge which,
however, they never did. Outside the moat on three sides is the
covered way, a narrow, level space for the massing of troops,
which widens in spots called places of arms. Outside of all,
except on the water front, is the glacis, an earthen embankment
leading up to the fort and so constructed that the guns on the
walls could sweep every foot of it. In 1836 (see Cohen) the moat
could be flooded at any moment.
HOT SHOT OVEN.
The hot shot oven and water battery were constructed by the
United States Government in 1835-42, the object being to heat shot
white hot in the oven and fire them from the mortars at the
vessels of an approaching enemy. The present sea wall was
constructed at this time at an expense of one hundred thousand
dollars.
In the walls of the fort, both front and back of the hot shot oven,
can be seen the bullet holes where prisoners were executed.
CITY GATES AND EARLY DEFENSES OF ST. AUGUSTINE.
St. Augustine being surrounded by water on three sides, there was
little danger of an attack except from the north. To guard against
this, three lines of defense were constructed across the peninsula
from the Matanzas to the San Sebastian Rivers. Fort Moosa was
located on the Matanzas river about 2 1/2 miles north of the present
post office. This fort was of considerable size. It was a complete
fortress with four bastions, moat, drawbridge, etc., and garrisoned
at one time with 133 men. A line of defense extended from this fort
to the San Sebastian. The second line of defense extended across the
peninsula near what is now Myrtle Avenue. The inner and last line ran
from Fort Marion to the San Sebastian and the present CITY GATES were
then the only entrance to the city. The gates as we see them to-day
were built of stone, but the rest of the wall was of logs stood on
end. On the outer side of this was a moat or deep ditch (a section of
this may still be seen near the San Sebastian) filled with water, and
the approach to the gates was over a draw bridge which was pulled up
at night. An additional line of defense consisting of a breastworks of
earth having on its summit several rows of Spanish bayonets planted so
closely as to be almost impenetrable, extended from the northern wall
south on what is now the line of Cordova Street to a point almost
abreast the Barracks, from where it ran east and joined the
Matanzas.
Fort Marion is in all respects a castle built after the plan of those
of the middle ages, and it is today one of the best preserved specimens
of the military architecture of its time. It has withstood many sieges
and proven itself capable on all occasions of resisting the enemy.
Its casemates and dungeons are viewed with wonder and amazement by
more than one hundred thousand visitors annually.
One of the early visitors to Fort Marion, after the secret dungeon was
found, was William Cullen Bryant, in 1843, for his story of the fort
see "Letters of a Traveller". Sergeant McGuire in charge of the fort
from 1866 to 1885 left a written account of what he told visitors,
"Just as it was told to me", that was found among old wills in St.
Johns County Records. An attested copy of this is in the Public Library.