1 - BALTIMORE, MARYLAND USGS Map

Stream

Class

Sq Miles

Page

Gauge

Min cfs

Rain Gauges/Notes

Herring Run

2+ (3)

3, 9

46

Moores Run / W Br

35, 20

Lake Roland, Fullerton [Balto]

Gwynns Falls,

1

2

32

58

Gwynns Falls @ Villanova

100

Fullerton, Randallstown [Balto]

2

3 (4-)

39

59

70

At Great Oak Av 

Dead Run

3 (4-)

5

61

Dead Run

100

Fullerton, Westview [Balto]

Jones Falls

2 (3+)

dam - 50

54

Release

100

Baptist Home [Balto]

Western Run

3+

1.6

56

Gwynns @ Delight

175

Pikesville [Balto]

Lower PATAPSCO

2+ (3)

285

67

Hollofield

200

Ellicott City

UPPER GUNPOWDER FALLS

3-. 1+

dam - 81

34

Parkton

90 =1.9 ft

 

Middle GUNPOWDER FALLS

A-1

150

 

Glencoe

Monkton - Sparks

Lower GUNPOWDER FALLS

dam - 340

35

Balto Canoe Club website 

Go to General Chit Chat choose Reservoir Levels

Or [with Loch Raven Res full] Beaverdam + Western + Glencoe + Long Green 125 = 375

Long Green Ck

4

9

42

Long Green Ck -

100

Ridge School [Balto]

 

 

2 - HARFORD COUNTY, MARYLAND

 

 

 

 

Stream

Class

Sq Miles

Page

Gauge

Min cfs

Rain Gauges/Notes

Swan Ck

2+ (3)

11

24

Swan

115

 

Bynum Run

3-

9

25

Bynum

75

 

James Run

2+ (3-)

7

25

James

100

 

Plumtree Run

35

3 hrs previous

Winters Run

1 (2)

19

27

Winters Run

 

 

Little Falls

3- (3)

32

38

Blue Mount

175

Freeland [Balto] Laurel Run

Little Gunpowder Falls

3- (3+)

43

43

Blue Mount

115

 

Little GPF

106

 

 

 

 

3 - CENTRAL MARYLAND & D.C. USGS Map

Stream

Class

Sq Miles

Page

Gauge

Min cfs

Rain Gauges/Notes

CABIN JOHN CK

3- (3)

18

196

Fourmile/ Sligo /Paint Br

Accotink / NW Branch

75 / 33 / 72

125 / 100

Fourmile (USGS)

SENECA CK

1

101

186

Dawsonville

85

 

Little Seneca

2 (2+)

21

188

400

 

Paint Br

2 (3)

8

233

Paint Br

140

Indian Ck [Prince Georges]

Sligo Ck

3- (3+)

3, 11

229

Sligo

140

Fourmile (USGS)

ROCK CK

Fall Line

3

67

211

Sherrill Dr

160

 

below Peirce Mill

2-

100

 

Morgan Run

3+ (3-)

23

 72

NW Br @ Colesville

100

Columbia

Northwest Br

3 (5) 1

26

228

NW Br @ Colesville

 250

 Earlier: Sligo Ck 75

LITTLE PATUXENT

3- (4)

38

84

Guilford

125

 

 

Savage

225

PATAPSCO So. Br. Gaither Gorge

3-

32

73

Cedarhurst

150

Lisbon rain gauge

 

Beaver Run

40

Patuxent @ Unity

90

PATAPSCO So. Br - Berkshire Rd

2 (4)

49

73

Cedarhurst

150

 

 

 

Beaver Run

40

Patuxent @ Unity

90

PATAPSCO So. Br. Confluence w/ North Branch

2

60

56

Cedarhurst

100

 

 

 

Beaver Run

25

Patuxent @Unity

60

Little Catoctin Ck

3 (4)

9

134

Catoctin

700, lag 3 hr

 Lovettsville, VA (USGS) 

Piney (VA)

150 lag 1 hr

ANTIETAM

1 - Waynesboro

1 (2+)

91

121

Waynesboro

175

 

2 - Funkstown

2

182

121

Waynesboro

140

 

 

Sharpsburg

190

3 Devils Backbone

2

201

121

Sharpsburg

150

 to the Potomac

E. Branch, Antietam

 

12

123

Waynesboro

600

 

 

 

3-

Catoctin

400

 

Bermudian Ck (PA)

60

Potomac NEEDLES

2

6,311

178

Point of Rocks minus Millville = 500

 

Potomac Whitehorse Rapid

2

9,500

 

Point of Rocks

 

Point of Rocks value, minus 1,000

THE STAIRCASE

2+

3,058

325

Millville

1.7 - 1,000

 

Lower

POTOMAC

GW Canal

2-

2 (3)

3

11,385

179

Little Falls

500

 

Mather Gorge

181

500

 

LITTLE FALLS

182

250

FOR TIDES go to Chain Bridge, near bottom

 

 

 

4 - NORTH CENTRAL MARYLAND Frederick Co, Monocacy Tribs + Catoctin

Stream

Class

Sq Miles

Page

Gauge

Min cfs

Rain Gauges/Notes

Friends Ck 3

3+

12

154

Middletown

 

(67 sq mi)

550 lag 4 hr

 

 

 

 Lovettsville (USGS)

 

Owens Ck

1

3

3+ (4)

5

156

1,000 lag 4 hr

3+

11

158

550 lag 3 hr

Middle Ck PA/MD 3

3 (4-)

21

158

550 lag 3 hr

Hunting Ck

1

3

8

159

800 lag 2 hr

3

3

11

160

600 lag 2 hr

CATOCTIN

Middle

1

4- (4=0)

12

136

600 lag 4 hr

Class IV

Creek

2

2+

21

136

300 lag 4 hr

 

Lower

 

2-

35

135

200, 150