Date:
October 28, 1958
Location: Pont-la-Dame, France
Jean
Boyer was driving home on October 28, 1958. "I had
reached the area of Pont-la-Dame and was ready to climb
the stretch of road called "Cote des Egaux,"
when I saw in the sky, right above Pont-la-Dame, in the
valley of the Grand Buech river, a motionless and luminous
"disk." ...I believe it was about 200 to 400
meters above the ground. Suddenly, after two or three
minutes, some sparks flew as the object rose vertically
at a dizzying speed..."

Drawing of the Pont-la-Dame encounter, based on a sketch
by the witness. (source: Vallee)
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Map of the sighting. (source: Vallee)
Source:
Jacques & Janine Vallee, 1966
[excerpt]
A
French observation made only two days after the [well-known]
Loch Raven Dam case, in strikingly similar conditions,
was parallel to it in many ways. First, let us emphasize
the fact that the Loch Raven case received no publicity
in the United States and that this is the first time it
has been published in detail; hence there was no possibility
that the French public knew about it only two days later.
The
report was made by Jean Boyer, of Beylon-de-Montmaur,
who was returning home on October 28, 1958, at the time
of the incident. Some of the details have appeared in
the Dauphine Libere of October 30, 1958, but most of the
information we have obtained was the result of a direct
investigation.
"I
had reached the area of Pont-la-Dame and was ready to
climb the stretch of road called "Cote des Egaux,"
when I saw in the sky, right above Pont-la-Dame, in the
valley of the Grand Buech river, a motionless and luminous
"disk." I stopped the car and got out. The time
must have been 7:55 p.m.
"I
looked at the "disk," which resembled two plates
glued together; I believe it was about 200 to 400 meters
above the ground. Suddenly, after two or three minutes,
some sparks flew as the object rose vertically at a dizzying
speed, leaving first a fiery trail, then a faint glow,
which vanished. At the same time, I felt a current of
air that rocked my station wagon."
Boyer
was about 600 to 700 meters from the bridge (see Figures
33 and 34) when he saw, above the railroad bridge, a sharply
defined oblong shadow swaying to the left and to the right
very gently. He got out of his station wagon, but not
before he had driven the car up to the bridge, in order
to place himself exactly below the "disk." This
is an essential part of the report, because it establishes
that the witness was indeed observing a real object with
a precise position in space. He saw a perfectly circular
machine, with a second, smaller circle inside the large
one; from this smaller circle short sparks of a dark red
color were emitted. As he had left the headlights of his
station wagon on, he walked back to the car and turned
them off. As he was reaching the vehicle, the object emitted
a formidable stream of blinding sparks, similar to those
of burning magnesium, and vanished instantaneously in
the sky. At the same time there was a very strong air
displacement.
There
are two interesting differences with the Loch Raven Dam
case: first, no noise was heard in connection with the
departure of the object; second, no interference with
the ignition of the car was noted. There were five other
witnesses, most of them motorists driving along the same
road.
Source:
http://www.ufoevidence.org/cases/case951.htm