Obstacle data is a snapshot, not a live feed.
The most recent obstacle data in the shipping app was taken on 28 July 2026. Individual sources are older; each is dated below. Obstacles built since then, and wires moved or removed since then, are not in the app.
Weather, traffic and airspace are fetched live and are not affected.
Obstacles — United States
U.S. electric utility operators (35)
Pacific Gas & Electric · Southern California Edison · PacifiCorp / Rocky
Mountain Power · Pepco Holdings · Xcel Energy Colorado · Avangrid (NYSEG and RG&E) ·
National Grid (New York and Massachusetts) · Central Hudson · Orange & Rockland · Avista ·
Minnesota Power · Dominion Energy Virginia · Arizona Public Service · Seattle City Light ·
Snohomish County PUD · United Illuminating · Rhode Island Energy · Green Mountain Power ·
Unitil · Hastings Utilities · Orlando Utilities Commission · Tallahassee Utilities ·
Gulf Coast Electric Cooperative · Garkane Energy · and the municipal utilities of Wauchula,
Bastrop, Logan, Springville, Payson, Oak City, Heber, Blanding, Morgan, Kaysville and
Hurricane
Overhead electric distribution line and pole GIS layers
Taken between 16 and 22 July 2026 from services each operator publishes
openly, without authentication.
Licence as recorded when the data was taken.
Pacific Gas and Electric Company
Overhead distribution and transmission circuits (KML export)
Not a public download. Exported from PG&E's internal GIS to Google Earth
KML and provided directly. The export carries no wire heights, so these spans alert at any
altitude. PG&E's separately published DRP compliance layer is credited above.
Licence as recorded when the data was taken.
Obstacles — France
The three French sources below are published under the Licence Ouverte / Open Licence 2.0, which grants free commercial reuse subject to one condition:
“An acknowledgement of the authorship of the ‘Information’: its source (at least, the name of the ‘Grantor’) and the date of the most recent update of the reused ‘Information’.”
Agence ORE and the French distribution system operators (Enedis and 41 others)
Réseau aérien moyenne tension (HTA)
Publisher's most recent update: 10 June 2026
Medium-voltage overhead distribution spans. Individual spans carry update
dates ranging from 9 June 2022 to 10 June 2026; the publisher date shown is the most recent
of them.
Obstacles — rest of world
Federal Office of Civil Aviation FOCA (BAZL)
Swiss air navigation obstacle data
Published by the Swiss federal geodata infrastructure, whose terms of use
require that the source be cited.
Licence as recorded when the data was taken.
Austro Control GmbH
ICAO Annex 15 Area 1 obstacle data set
Obtained through an Austro Control account, under the terms attached to that download.
Licence as recorded when the data was taken.
Natural Resources Canada
CanVec — Topographic Data of Canada
Contains information licensed under the Open Government Licence – Canada.
© Commonwealth of Australia (Geoscience Australia) 2026
National Electricity Infrastructure — transmission lines, power stations and substations
Transmission lines taken 8 July 2026; power stations and substations 9 July 2026.
Australian Communications and Media Authority
Register of Radiocommunications Licences (RRL)
The Register's terms, as recorded when the data was taken, permit
incorporation into a software product and distribution to third parties.
Licence as recorded when the data was taken.
Obstacles — crowd-sourced and pilot-reported
© OpenStreetMap contributors
OpenStreetMap — obstacles, wind turbines, helipads and airport surfaces
Fetched live and, for airport surfaces, also served from our own backend.
Lateral pilots
Pilot-reported obstacles
Airspace, airports, terrain and weather
OurAirports and its contributors
Airports, runways and radio frequencies
A community-maintained dataset, credited at the publisher's request rather
than as a licence condition. FAA heliport contact details come from NASR instead.
Licence as recorded when the data was taken.
U.S. Federal Aviation Administration
National Airspace System Resource (NASR) subscription — heliports and fixes
Publisher's most recent update: 9 July 2026
FAA 28-day subscription, edition of 9 July 2026. Heliport contact details
taken 23 July 2026; navigation fixes 29 July 2026.
U.S. Federal Aviation Administration
VFR sectional charts and the Chart Supplement
Publisher's most recent update: 9 July 2026
Not a live feed. Sectional tiles were built on 6 August 2026 and cover the
Seattle sheet only. The Chart Supplement is the 9 July 2026 edition, which the FAA supersedes
on 3 September 2026.
AWS Terrain Tiles and its contributing agencies
Terrain elevation grid
Assembled from many national elevation datasets, each with its own
attribution; the contributing agencies are listed at the source link.
Licence as recorded when the data was taken.
NOAA / National Weather Service and the FAA Aviation Weather Center
METAR, TAF, PIREP, SIGMET, G-AIRMET and radar