{
  "schemaVersion": 1,
  "buildDate": "2026-10-03T16:44:51Z",
  "osmDataTimestamp": "2026-10-03T14:57:06Z",
  "source": "OpenStreetMap via Overpass API (overpass-api.de, overpass.kumi.systems, lz4.overpass-api.de, z.overpass-api.de, maps.mail.ru)",
  "attribution": "© OpenStreetMap contributors",
  "attributionURL": "https://www.openstreetmap.org/copyright",
  "license": "ODbL-1.0",
  "licenseText": "Contains information from OpenStreetMap (© OpenStreetMap contributors), which is made available under the Open Database License (ODbL) 1.0: https://opendatacommons.org/licenses/odbl/1-0/ . See https://www.openstreetmap.org/copyright . This derivative database (launches, hazards, portages, waters) is itself licensed under the ODbL 1.0.",
  "compression": "raw DEFLATE (RFC 1951), decode with NSData.decompressed(using: .zlib)",
  "file": "launchdb.json.zlib",
  "bytesCompressed": 3860371,
  "bytesUncompressed": 16391657,
  "sha256": "0f134a6fede0bafc9d87cf35411fb620c4d5629c4564f427ebf0370c7ae1a696",
  "counts": {
    "launches": 39752,
    "launchesByKind": {
      "accessPoint": 11080,
      "bank": 152,
      "beach": 97,
      "dock": 2,
      "ramp": 27347,
      "slipway": 1050,
      "takeOut": 24
    },
    "launchesWithWater": 37152,
    "hazards": 111849,
    "hazardsByKind": {
      "dam": 99995,
      "lowHeadDam": 111,
      "other": 16,
      "weir": 11727
    },
    "portages": 5545,
    "waters": 15254,
    "watersByKind": {
      "coast": 830,
      "lake": 9348,
      "river": 5076
    },
    "duplicatesHidden": {
      "launches": 3738,
      "hazards": 4361
    },
    "droppedPrivateLaunches": 1288,
    "droppedOutsideUSCanada": 527
  },
  "coverage": {
    "tilesTotal": 159,
    "tilesCompleted": 159,
    "missingTiles": [],
    "priorityRegions": {
      "NC": "6/6 tiles",
      "VA": "6/6 tiles",
      "MN": "9/9 tiles",
      "WI": "4/4 tiles",
      "MI": "12/12 tiles",
      "NY": "9/9 tiles",
      "PA": "4/4 tiles",
      "FL": "9/9 tiles",
      "TX": "17/17 tiles",
      "WA": "6/6 tiles",
      "OR": "9/9 tiles",
      "CA": "15/15 tiles",
      "MO": "6/6 tiles",
      "ON": "31/31 tiles",
      "QC": "20/20 tiles",
      "BC": "10/10 tiles"
    },
    "bbox": "US + Canada (CONUS 24–50°N, Canada 50–84°N, Alaska, Hawaii); coarse country mask"
  }
}