ArcGIS REST Services Directory
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services
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HEM
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NHDHigh (MapServer)
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HemSoe
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HEMGetReachcodeFromXY
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API Reference
HEMGetReachcodeFromXY( HEM/NHDHigh )
point
selectionLayerName
selectionType
searchToleranceMeters
outWKID
Format (f)
json
html