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* end of ELMER
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It ig steep on the seaward side and gently sloping on the shore side.
w
are rare or entirely absent except in small pools.
dge of Eniwetok
which ig about 1300 feet wide,
NO principal
and the last 500 feet of the groin is a gravel and sand bar.
contains legs
t
al small dune-
YVONNE,
in the
a medium-sized islet,
A more complete
is located along the northeast face of
Eniwetok Atoll about 6 miles north-northwest of BRUCE.
entral part
It is an elongated single
Its dry land area
islet measuring about 1.7 miles long and about 0,2 miles wide.
ad for five or
(Figure 10).
comprises about 0.3 square miles
3 yet has not
been used as a shot site.
For many years
this islet has
As a result considerable modification of its natural
topography has been produced.
‘sed by the
It is today a low-lying sand-covered flat with
numerous deep and large depressions extending down into the reef structure below
the reer
and with numerous dune-like hummocks which reach heights of 15 to 20 feet above
al Ridge
The seaward and lagoon reef and beach characteristics are similar to
gea level.
Ls approxi-
eh Ses SW eae TESSNS SeteRe ce
oe ts paEEciel me
eae
those described in the case of BRUCE.
vtEOS See
ater,
BRUCE is ccvered almost completely with native vegetation.
description of the vegetation is given in Section 6,
Ibservations
nd marine
The
beaches which slope gently out to a wide partially submerged rock flat.
ch glopes
orange-~
The
lagoonward side of BRUCE is composed of a number of scalloped gravel and sand
and is about
ir more of
The maximum current through this channel reaches 2 knots.
flood tide.
‘sentially flat
lists of a
A narrow
water here ig one to one and one half feet deep at low tide and during early
ography of the
¥ rounded
(5)
channel separates the groin from the islet beach and is gravel covered.
al measuring
Travel and
To
Further shoreward the rubble grows finer
boulders of coral and algal limestone.
at the Southern
€ floor ig
modified by erosion
landward the base of the bar is lithified and on it is piled a mass of loose
arated from the
lore beyond
The Rock Bar or Groin,
is a lithified conglomorate,
and golution to form a rough platform about 3 inches above low water level.
*ntire northern
‘Y spaced
(4)
Corals
nations,
As a result of numerous nuclear deto-
the islet is entirely devoid of vegetation.
JANET is a principal islet of the atoll and is situated at its northernmost
extremity.
It lies some 11 miles northwest of YVONNE and is roughly triangular
in shape.
JANET measures some 1.1 miles in a northwest-southeast direction and
some 0.7 miles in a northeast-southwest direction.
miles of dry land (Figure 10).
It contains about 0.6 gquare
This islet has also been used during previous
years as a shot site and as a result is largely devoid of vegetation and has an
appreciably altered topography.
The islet consists of an essentially pyramidal
table at some 15 feet above sea level with numerous large pits
and dépressions
located along its seaward Sides
,
13
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alk is