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AK Division of Geological & Geophysical Surveys

No authak-dggs

Alaska Division of Geological & Geophysical Surveys — state geological survey. Mineral occurrences, geologic-map publication index, mining districts, volcanoes, radon observations. - searchMineralOccurrences ⭐ ~335 — DDS-18 MIL1, filter commodity / group / deposit type / status - searchGeologicMaps ⭐ ~4.16K USGS+DGGS publication index, filter agency / scale / keyword - searchMineralDistricts ⭐ 75 polygons across 14 regions - searchVolcanoes (~53 AVO inventory), getServiceInfo §0 spec drift: geology/statemap_projects + geophysics/Geophysical_Surveys services 500 ("No Layer or Table"). DROPPED. Volcanoes service rejects outFields=* with gateway error — handler enumerates explicit fields. Native CRS varies; outSR=4326 on every call.

geologymineralsminingvolcanoesalaskaak-dggscritical-mineralsstate-geological-survey
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Provenance

PublisherAK Division of Geological & Geophysical Surveys
API basehttps://maps.dggs.alaska.gov/arcgis/rest/services

Freshness & coverage

FreshnessFreshness not declared
GeographicNot declared
TemporalNot declared
AuthenticationNo credentials required

Methods (5)

  • searchMineralOccurrences

    read

    DDS-18 mineral occurrences (~335). Filter commodity/group/deposit/status/pastProducerOnly/bbox.

    Input schema
    {
  "type": "object",
  "properties": {
    "commodity": {
      "type": "string"
    },
    "commodityGroup": {
      "type": "string",
      "examples": [
        "Gold"
      ]
    },
    "depositType": {
      "type": "string"
    },
    "propertyStatus": {
      "type": "string"
    },
    "pastProducerOnly": {
      "type": "boolean"
    },
    "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"
    },
    "format": {
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "records"
          ]
        },
        {
          "type": "string",
          "enum": [
            "geojson"
          ]
        }
      ]
    }
  },
  "additionalProperties": false
}

    AK has NO county — use bbox or near. property_status: 4 values.

  • searchGeologicMaps

    read

    DGGS+USGS map publication index (~4.16K polygons). Filter agency/scale/title/keyword.

    Input schema
    {
  "type": "object",
  "properties": {
    "agency": {
      "type": "string",
      "examples": [
        "DGGS"
      ],
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "USGS"
          ]
        },
        {
          "type": "string",
          "enum": [
            "DGGS"
          ]
        }
      ]
    },
    "maxScaleDenominator": {
      "type": "number"
    },
    "publicationPrefix": {
      "type": "string"
    },
    "title": {
      "type": "string",
      "examples": [
        "Brooks Range"
      ]
    },
    "keyword": {
      "type": "string"
    },
    "digitalOnly": {
      "type": "boolean"
    },
    "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"
    },
    "format": {
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "records"
          ]
        },
        {
          "type": "string",
          "enum": [
            "geojson"
          ]
        }
      ]
    }
  },
  "additionalProperties": false
}

    agency: USGS or DGGS. publication_number prefix is the series code.

  • searchMineralDistricts

    read

    Alaska mining-district polygons (~75 across 14 regions). Filter name or region.

    Input schema
    {
  "type": "object",
  "properties": {
    "name": {
      "type": "string"
    },
    "region": {
      "type": "string",
      "examples": [
        "Yukon River"
      ]
    },
    "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"
    },
    "format": {
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "records"
          ]
        },
        {
          "type": "string",
          "enum": [
            "geojson"
          ]
        }
      ]
    }
  },
  "additionalProperties": false
}

    region uses UPPER LIKE substring (catches a double-space upstream typo).

  • searchVolcanoes

    read

    AVO volcano inventory (~53). Filter name/identityConfidence/sinceYear/bbox/near.

    Input schema
    {
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "examples": [
        "Augustine"
      ]
    },
    "identityConfidence": {
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "certain"
          ]
        },
        {
          "type": "string",
          "enum": [
            "questionable"
          ]
        }
      ]
    },
    "sinceYear": {
      "type": "number"
    },
    "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"
    },
    "format": {
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "records"
          ]
        },
        {
          "type": "string",
          "enum": [
            "geojson"
          ]
        }
      ]
    }
  },
  "additionalProperties": false
}

    outFields=* triggers gateway error — handler uses explicit field list.

  • getServiceInfo

    read

    Schema + record counts + enum values for any of the 5 services. Pass `service` to scope.

    Input schema
    {
  "type": "object",
  "properties": {
    "service": {
      "type": "string",
      "examples": [
        "mineralOccurrences"
      ]
    }
  },
  "additionalProperties": false
}