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NC Geological Survey (Geologic Map)

No authnc-ncgs

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.

Get this contract as JSON

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)

  • getMapUnits

    read

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

    Input schema
    {
  "type": "object",
  "properties": {
    "period": {
      "type": "string",
      "examples": [
        "Triassic"
      ]
    },
    "era": {
      "type": "string"
    },
    "eon": {
      "type": "string"
    },
    "belt": {
      "type": "string"
    },
    "group": {
      "type": "string"
    },
    "formation": {
      "type": "string"
    },
    "unitLabel": {
      "type": "string"
    },
    "bbox": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "near": {
      "type": "object",
      "properties": {
        "lat": {
          "type": "number"
        },
        "lon": {
          "type": "number"
        },
        "radiusMiles": {
          "type": "number"
        }
      },
      "required": [
        "lat",
        "lon",
        "radiusMiles"
      ],
      "additionalProperties": false
    },
    "limit": {
      "type": "number"
    }
  },
  "additionalProperties": false
}

    Filter period, era, eon, belt, group, formation, unit, bbox, or near; returns.

  • getStructure

    read

    Structural lines (193) as GeoJSON — faults and folds

    Input schema
    {
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "examples": [
        "thrust"
      ]
    },
    "name": {
      "type": "string"
    },
    "bbox": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "near": {
      "type": "object",
      "properties": {
        "lat": {
          "type": "number"
        },
        "lon": {
          "type": "number"
        },
        "radiusMiles": {
          "type": "number"
        }
      },
      "required": [
        "lat",
        "lon",
        "radiusMiles"
      ],
      "additionalProperties": false
    },
    "limit": {
      "type": "number"
    }
  },
  "additionalProperties": false
}

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

  • getDikes

    read

    Diabase dike lines (134) as GeoJSON

    Input schema
    {
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "bbox": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "near": {
      "type": "object",
      "properties": {
        "lat": {
          "type": "number"
        },
        "lon": {
          "type": "number"
        },
        "radiusMiles": {
          "type": "number"
        }
      },
      "required": [
        "lat",
        "lon",
        "radiusMiles"
      ],
      "additionalProperties": false
    },
    "limit": {
      "type": "number"
    }
  },
  "additionalProperties": false
}

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

  • getUnitExamples

    read

    Reference outcrop example points (148) as GeoJSON

    Input schema
    {
  "type": "object",
  "properties": {
    "mapUnit": {
      "type": "string"
    },
    "area": {
      "type": "string",
      "examples": [
        "Murphy"
      ]
    },
    "name": {
      "type": "string"
    },
    "bbox": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "near": {
      "type": "object",
      "properties": {
        "lat": {
          "type": "number"
        },
        "lon": {
          "type": "number"
        },
        "radiusMiles": {
          "type": "number"
        }
      },
      "required": [
        "lat",
        "lon",
        "radiusMiles"
      ],
      "additionalProperties": false
    },
    "limit": {
      "type": "number"
    }
  },
  "additionalProperties": false
}

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

  • getServiceInfo

    read

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

    Input schema
    {
  "type": "object",
  "properties": {
    "service": {
      "type": "string"
    }
  },
  "additionalProperties": false
}