600

750

850

600

850

900

750

900

800

700

900

850

600

950

650

700

700

600

900

950

650

800

600

650

750

750

750

650

850

600

750

750

800

850

850

900

800

850

750

600

800

850

600

850

700

700

700

950

650

900

750

850

750

700

750

800

750

850

750

850

650

900

750

650

950

600

800

600

850

600

650

850

850

900

700

700

900

750

700

650

900

700

750

750

750

800

850

800 800

800

600 650

900

700

750

850

700

850

800

750

700

800

750

800

700

750

750

52

84

84

84

S C U R T IS H IL L R D

E H E E R R D

S D E R IN D A R D

C A M P C R E E K R D

S S T O R Y B R O O K R D

S M A S S B A C H R D

S B U C H E R R D

5 7 6 T H A V E

S C E N IC R ID G E R D

S D E R IN D A R D

E Z IN K R D

5 5 8 T H A V E

S R U S H R D

H A A S R D

E R U S H R D

W R U S H R D

S A IR H A R T R D

Z IO N R D

M E S S M E R R D

S C E N IC R ID G E R D

A R M Y D E P O T R D

E P L O S C H R D

C A M P C R E E K R D

S G A M B L E H IL L R D

M IL L H O L L O W R D

M A R C U S R D

V IN C E N T R D

S C R E E K R D

D IE H L R D

S C E N IC R ID G E R D

A IR H A R T R D

11 3 T H S T

52

84

84

84

S C U R T IS H IL L R D

E H E E R R D

S D E R IN D A R D

C A M P C R E E K R D

S S T O R Y B R O O K R D

S M A S S B A C H R D

S B U C H E R R D

5 7 6 T H A V E

S C E N IC R ID G E R D

S D E R IN D A R D

E Z IN K R D

5 5 8 T H A V E

S R U S H R D

H A A S R D

E R U S H R D

W R U S H R D

S A IR H A R T R D

Z IO N R D

M E S S M E R R D

S C E N IC R ID G E R D

A R M Y D E P O T R D

E P L O S C H R D

C A M P C R E E K R D

S G A M B L E H IL L R D

M IL L H O L L O W R D

M A R C U S R D

V IN C E N T R D

S C R E E K R D

D IE H L R D

S C E N IC R ID G E R D

A IR H A R T R D

11 3 T H S T

Camp

Creek

Rush

C reek

Rush Creek

Rush

Creek

Rush

Creek

Rush

Creek

Rush Creek

Little

Rush

Creek

Apple River

Apple River

Smith Creek

M

I

S

S

I

S

S

I

P

P

I

R

I

V

E

R

M I S S I S S I P P I

R I V E R

Lower Brown Lake

Pinoak Lake

Fitzgerald Lake

Big Keller

Lake

Horseshoe Lake

Lundy Lake

Buffalo

Lake

Cheek

Slough

Buffalo Lake

Blackhawk

Lainsville

Arnold

Marcus

Heer

Hill

Railroad

Island

Arnold

Landing

NYA Camp

Riprap

Island

Railroad

Island

Apple

River

Island

Riprap

Island

Island

266

Apple River

Island

Santa Fe

Island

Sweeney

Islands

Cheek

Slough

Fitzgerald

Lake West Dam

Fitzgerald

Lake DamEast Dam

Santa Fe

Beach

Morrison

Cemetery

Massbach

Cemetery

Albright

Cemetery

Mosquito

Hill

Cemetery

Savanna

Elizabeth

Wacker

Hanover Stockton

Green

Island Blackhawk Pleasant

Valley

Miles

90°

75

N

42°

76

30 7

07'

15'

FEET (IA)

000

FEET (IA)

30" 7

15'

68000m

46

46

7

15'

32 15' 7

7

30"

31 42° E

46

34 35

7

46

81

46

000m

46

73

71

10'

46

10'

46

73

81

7

46

90°

30"

7

46

7

46

80

000m

46

10'

07'

74

7

31

70

30"

79

46

33

69

46

28 000

530

46

12'

46

72

46

7

12'

37

27 FEET (IA)

000m

42°

74

46

46

10'

2 000

79

FEET (IL)

FEET (IL)

300

000

280

7 07'

29

7

7

76

78

46

71

7

70

7

69

28

46

46

7

3

07'

77

7

36

78

12'

34

90° 2

810

30"

1 000

000

000

N

46

830

12'

46

30"

570

FEET (IL)

FEET (IL)

FEET (IA)

90°

75

E 30" 000

2

30"

42° 5

80

37

32

46

29

030

3

5

990

U.S. DEPARTMENT OF THE INTERIOR

U. S. GEOLOGICAL SURVEY

ILLINOIS

ADJOINING 7.5' QUADRANGLES

QUADRANGLE LOCATION

BLACKHAWK, IL-IA

2010

Interstate Route State Route

ROAD CLASSIFICATION

Interstate Route US Route State Route

Ramp 4WD

US Route Local Road

BLACKHAWK QUADRANGLE

ILLINOIS-IOWA

7.5-MINUTE SERIES

Zone 15T

Imagery................................NAIP, June 2007 - August 2009

Roads.....................................US Census Bureau TIGER data

with limited USGS updates, 2006 - 2008

Names...............................................................GNIS, 2008

Hydrography.................National Hydrography Dataset, 2007

Contours............................National Elevation Dataset, 1999

North American Datum of 1983 (NAD83)

World Geodetic System of 1984 (WGS84). Projection and

1 000-meter grid: Universal Transverse Mercator,

Produced by the United States Geological Survey

10 000-foot ticks: Illinois Coordinate System of 1983

(west zone)

and Iowa Coordinate System of 1983

(north zone)

1000 500 0 METERS 1000 2000

1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

FEET

This map was produced to conform with version 0.5.10 of the

draft USGS Standards for 7.5-Minute Quadrangle Maps.

A metadata file associated with this product is also draft version 0.5.10

SCALE 1:24 000

1 0.5 0 1

MILES

MN 1 0.5 0 KILOMETERS 1 2

GN

UTM GRID AND 2010 MAGNETIC NORTH DECLINATION AT CENTER OF SHEET

1° 53 ́

34 MILS

1° 23 ́

24 MILS

U.S. National Grid

100,000-m Square ID

Grid Zone Designation

15T

YG

CONTOUR INTERVAL 10 FEET