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NC Geological Survey (Geologic Map)

Free

North Carolina Geological Survey — statewide bedrock geology from the Geologic Map of North Carolina (NCGS, AGOL FeatureServer). Map-unit polygons (belt / group / formation / eon-era-period / absolute age), fault + fold structural lines, diabase dikes, and reference outcrop example points — all returned as GeoJSON map layers (Polygon / MultiLineString / Point) ready for the map viewer. Filter by geologic period, era, eon, belt, group, formation, unit label, structure type, or by bbox / near. DEPRECATED dataset: this is the digital 1:500,000-scale 1985 map; NCGS plans a USGS-GeMS replacement, so use it for regional/statewide context rather than site-scale work. No auth.

Set up this sourceGet the full contract and schemas as JSON

No key required. Included on Free.

What you can ask

  • “What does NC Geological Survey (Geologic Map) have for the area or asset I'm working on?”
  • “Pull the most recent NC Geological Survey (Geologic Map) records and put them in a table.”
  • “What does NC Geological Survey (Geologic Map) cover, and how fresh is the data?”

About this source

North Carolina Geological Survey — statewide bedrock geology from the Geologic Map of North Carolina (NCGS, AGOL FeatureServer). Map-unit polygons (belt / group / formation / eon-era-period / absolute age), fault + fold structural lines, diabase dikes, and reference outcrop example points — all returned as GeoJSON map layers (Polygon / MultiLineString / Point) ready for the map viewer. Filter by geologic period, era, eon, belt, group, formation, unit label, structure type, or by bbox / near. DEPRECATED dataset: this is the digital 1:500,000-scale 1985 map; NCGS plans a USGS-GeMS replacement, so use it for regional/statewide context rather than site-scale work. No auth.

Connector ID nc-ncgs

Provenance

PublisherNC Geological Survey (Geologic Map)
API basehttps://services2.arcgis.com/kCu40SDxsCGcuUWO/arcgis/rest/services/Geologic_Map_of_North_Carolina/FeatureServer

Freshness & coverage

FreshnessFreshness not declared
GeographicNot declared
TemporalNot declared
AuthenticationNo credentials required

› Methods (5)

Technical detail for developers: parameters, pagination, units, and freshness per method.

  • getMapUnits

    read

    Bedrock map-unit polygons (~1837) as GeoJSON — belt, group, formation, eon/era/period, absolute age

    Filter period, era, eon, belt, group, formation, unit, bbox, or near. Max 25.

  • getStructure

    read

    Structural lines (193) as GeoJSON — faults and folds

    Filter type or name plus bbox/near; returns MultiLineString GeoJSON.

  • getDikes

    read

    Diabase dike lines (134) as GeoJSON

    Filter type plus bbox/near; returns MultiLineString GeoJSON; source is Diabase.

  • getUnitExamples

    read

    Reference outcrop example points (148) as GeoJSON

    Filter mapUnit, area, name, bbox, or near; returns Point GeoJSON.

  • getServiceInfo

    read

    Describe layers, fields, counts, enums, native CRS, and deprecated 1985 map.