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MARCUS, CARROLL CO., ILL. Railroad: Chicago, Burlington &
Quincy

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ISLAND NO. 260 (foot)

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BEAVER CREEK.

KELLERS ISLAND. (ISLAND NO. 264) (head) (partly inundated).
SANTA FE ISLAND (ISLAND NO. 263) (foot) (partly inundated) -
RUSH CREEK.

SAVANNA BAY (mouth).

ISLAND NO. 266 (foot) (partly inundated).

ISLAND NO. 265 (foot) (partly inundated).

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Pleasant Creek

-552.0 M

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apolis

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ISLAND NO. 233 (foot) (partly inundated)..

MENOMINEE SLOUGH (lower end).

SINSINAWA RIVER (mouth) (enters Deadmans Slough).
TETE DU MORT CREEK.

ISLAND NO. 235 (foot) (partly inundated)

ISLAND NO. 238 (head) (partly inundated).
DEADMANS SLOUGH (lower end).
HARRIS SLOUGH (upper end).

ISLAND NO. 239 (head) (partly inundated).

GEARS FERRY, JO DAVIESS CO., ILL. (on Harris Slough).

GORDONS FERRY, JACKSON CO., IOWA. Railroad: Chicago,
Milwuakee, St. Paul & Pacific.

GAGE, GORDONS FERRY (see p. 289).

ISLAND NO. 238 (foot) (partly inundated)

PORTAGE, JO DAVIESS CO., ILL. (on Harris Slough). Railroad:
Illinois Central.

GALENA RIVER (mouth) (empties into Harris Slough).

GALENA JUNCTION, JO DAVIESS CO., ILL. (on Harris Slough).
Railroads: Chicago, Burlington & Quincy; and Chicago Great West-

ern

STONE SLOUGH (upper end) (closing dam near upper end).
ISLAND NO. 241 (head) (partly inundated).

AIKEN, JO DAVIESS CO., ILL. (on Harris Slough). Railroad:
Chicago Great Western.
YEAGER CREEK.

HARRIS SLOUGH (lower end) (junction with Stone Slough).

SMALLPOX CREEK (enters Stone Slough behind Island No. 241).
BELLEVUE SLOUGH (upper end) (closing dam near upper end).
ISLAND NO. 243 (head) (partly inundated).

ISLAND NO. 241 (foot) (partly inundated)

STONE SLOUGH (lower end)

ISLAND NO. 242 (foot) (partly inundated).

CROOKED SLOUGH (upper end) (closing dam near upper end) (now
within pool)-

ISLAND NO. 246 (head) (partly inundated).

SMITHS, JACKSON CO., IOWA. Railroad: Chicago, Milwaukee,
St. Paul & Pacific.

SPRUCE CREEK.

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BELLEVUE SLOUGH (lower end).

ISLAND NO. 245 (foot) (partly inundated).

ISLAND NO. 247 (head) (partly inundated)

GAGE, LOCK AND DAM NO. 12 (upper) (see p.289)

LOCK AND DAM NO. 12 (see p. 199) (for regulations see p. 21). Lock
on right bank, 110′ x 600′.

ISLAND NO. 247 (foot) (partly inundated).

GAGE, LOCK AND DAM NO. 12 (lower) (see p. 289).

BELLEVUE, JACKSON CO., IOWA (1771). Railroad: Chicago,
Milwaukee, St. Paul & Pacific.

MILL CREEK.

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