Layers:

Layer: Hydrographs_WGS84 (0)


Name: Hydrographs_WGS84

Display Field:

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: <p>This was a draft layer and is now deprecated.&nbsp;</p>

Copyright Text: All data from the United States Geologic Survey's National Water Information Systems, Current Conditions for Maryland web interface (https://waterdata.usgs.gov/md/nwis/rt).

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -8658120.7728
YMin: 4611814.7244
XMax: -8385078.7993
YMax: 4817753.328
Spatial Reference: 102100 (3857)


Drawing Info:

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HasM: false

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Has Geometry Properties: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
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• Latitude (type: esriFieldTypeDouble, alias: Latitude, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Longitude (type: esriFieldTypeDouble, alias: Longitude, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Coordinate (type: esriFieldTypeString, alias: Coordinate System, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• Link (type: esriFieldTypeString, alias: Link, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)

Templates:

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Description:
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Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 10/17/2025 2:13:38 PM

Schema Last Edit Date: 10/17/2025 12:37:22 PM

Data Last Edit Date: 10/17/2025 12:37:22 PM

Layer: Hydrographs_WGS84_v2 (1)


Name: Hydrographs_WGS84_v2

Display Field:

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: <p>This was a draft layer and is now deprecated.&nbsp;</p>

Copyright Text: All data from the United States Geologic Survey's National Water Information Systems, Current Conditions for Maryland web interface (https://waterdata.usgs.gov/md/nwis/rt).

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:


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HTML Popup Type: esriServerHTMLPopupTypeNone

Object ID Field: OBJECTID

Unique ID Field:

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IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
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Templates:

Name: New Feature
Description:
Drawing Tool: esriFeatureEditToolPoint
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 10/17/2025 2:22:01 PM

Schema Last Edit Date: 10/17/2025 12:37:22 PM

Data Last Edit Date: 10/17/2025 12:37:22 PM

Layer: Hydrographs_NAD83 (2)


Name: Hydrographs_NAD83

Display Field:

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: <p>This was a draft layer and is not deprecated</p>

Copyright Text: All data from the United States Geologic Survey's National Water Information Systems, Current Conditions for Maryland web interface (https://waterdata.usgs.gov/md/nwis/rt).

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -8658121.05941113
YMin: 4611815.81105067
XMax: -8385078.9909905
YMax: 4817754.4854573
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Schema Last Edit Date: 10/17/2025 12:37:22 PM

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Layer: Hydrographs_WGS84_v4 (3)


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Copyright Text: All data from the United States Geologic Survey's National Water Information Systems, Current Conditions for Maryland web interface (https://waterdata.usgs.gov/md/nwis/rt).

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Layer: hydrographs_v5_NAD83 (4)


Name: hydrographs_v5_NAD83

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Type: Feature Layer

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Description: <p>This was a draft layer and is now deprecated.&nbsp;</p>

Copyright Text: All data from the United States Geologic Survey's National Water Information Systems, Current Conditions for Maryland web interface (https://waterdata.usgs.gov/md/nwis/rt).

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Schema Last Edit Date: 10/17/2025 12:37:22 PM

Data Last Edit Date: 10/17/2025 12:37:22 PM

Layer: Hydrographs_v5_WGS84 (5)


Name: Hydrographs_v5_WGS84

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Description: <p><span style="background-color:rgb(255,255,255); color:rgb(74,74,74); font-family:&quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;"><span style="display:inline !important; float:none; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;">This layer displays the point locations of and the discharge (cubic feet/second) hydrographs from October 1, 1996 to September 30, 2004 for the following USGS streamgages in Maryland: Youghiogheny River Near Oakland, MD (USGS-03075500), Marsh Run at Grimes, MD (USGS-01617800), Potomac River at Point Of Rocks, MD (USGS-01638500), Little Falls at Blue Mount, MD (USGS-01582000), Big Elk Creek at Elk Mills, MD (USGS-01495000), Morgan Creek Near Kennedyville, MD (USGS-01493500), Western Branch at Upper Marlboro, MD (USGS-01594526), St. Mary's River at Great Mills MD (USGS-01661500), Nassawango Creek Near Snow Hill, MD (USGS-01485500).</span></span></p>

Copyright Text: All data from the United States Geologic Survey's National Water Information Systems, Current Conditions for Maryland web interface (https://waterdata.usgs.gov/md/nwis/rt).

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Spatial Reference: 102100 (3857)


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HasM: false

Has Attachments: true

Has Geometry Properties: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
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• Order_ (type: esriFieldTypeInteger, alias: Order, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Streamgage_Number (type: esriFieldTypeInteger, alias: Streamgage Number, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Streamgage_Name (type: esriFieldTypeString, alias: Streamgage Name, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• Latitude (type: esriFieldTypeDouble, alias: Latitude, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Longitude (type: esriFieldTypeDouble, alias: Longitude, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Coordinate_System (type: esriFieldTypeString, alias: Coordinate System, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• Link (type: esriFieldTypeString, alias: Link, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• Strm_Num_2 (type: esriFieldTypeString, alias: Strm_Num_2, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)

Templates:

Name: New Feature
Description:
Drawing Tool: esriFeatureEditToolPoint
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 10/17/2025 2:40:39 PM

Schema Last Edit Date: 10/17/2025 12:37:22 PM

Data Last Edit Date: 10/17/2025 12:37:22 PM

Tables:

HydrographLocations_csv (6)


Name: HydrographLocations_csv

Display Field:

Type: Table

Description: <p>This was a draft layer and is now deprecated.</p>

Copyright Text: All data from the United States Geologic Survey's National Water Information Systems, Current Conditions for Maryland web interface (https://waterdata.usgs.gov/md/nwis/rt).

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
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• Streamgage_Number (type: esriFieldTypeInteger, alias: Streamgage Number, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Streamgage_Name (type: esriFieldTypeString, alias: Streamgage Name, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• Latitude (type: esriFieldTypeDouble, alias: Latitude, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Longitude (type: esriFieldTypeDouble, alias: Longitude, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Coordinate_System (type: esriFieldTypeString, alias: Coordinate System, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• NAD83_Coord (type: esriFieldTypeString, alias: NAD83 Coord, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• NAD83_Coord_X (type: esriFieldTypeDouble, alias: NAD83 Coord_X, SQL Type: sqlTypeOther, nullable: true, editable: true)
• NAD83_Coord_Y (type: esriFieldTypeDouble, alias: NAD83 Coord_Y, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Link (type: esriFieldTypeString, alias: Link, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• Field8 (type: esriFieldTypeString, alias: Field8, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• Field9 (type: esriFieldTypeString, alias: Field9, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• Field10 (type: esriFieldTypeString, alias: Field10, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)
• Field11 (type: esriFieldTypeString, alias: Field11, SQL Type: sqlTypeOther, length: 8000, nullable: true, editable: true)

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 10/17/2025 2:40:31 PM

Schema Last Edit Date: 10/17/2025 12:37:22 PM

Data Last Edit Date: 10/17/2025 12:37:22 PM