Maps & Navigation

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Aviation

Aviation charts and maps, live (ADSB) flight tracking, and more.

• Charts: AirNav.com
  Airport information, navaids, and other resources for pilots.
• Charts: SkyVector
  Provides “aeronautical charts, online mapping[,] and related flight planning products and services.”
• Charts: U.S. FAA VFR Sectionals
  Official FAA sectional charts and related resources.
• Tracking: ADS-B Exchange
  Offers “an unfiltered, uncensored window into global aerial movements.”
• Tracking: FlightAware
  The “world’s largest flight tracking and data platform.”
• Tracking: Flightradar24
  Provides “real-time information about thousands of aircraft around the world.”

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General

General-purpose online maps and apps for navigation, geolocation, and research.

• Apple Maps
  Online version of Apple Maps, the default mapping provider for Apple devices.
• Bing Maps
  Online mapping service from Microsoft.
• CoMaps
  Mobile app powered by OpenStreetMap for private, offline navigation.
• Google Maps
  Online version of Google Maps, the default mapping provider for Google devices.
• OpenStreetMap
  Community-driven, open-source mapping service.
• Wikimapia
  A “multilingual open-content collaborative map.”

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Government

Official government map sources for the United States, Commonwealth of Virginia, and Loudoun County, Virginia.

• 511 Virginia
  Road conditions and highway cameras by the Virginia Dept. of Transportation (VDOT).
• Loudoun County Mapping and GIS
  Official mapping and geography system for Loudoun County, Virginia.
• U.S. National Map
  Official U.S. government map by the U.S. Geological Survey (USGS).
• Virginia Dept. of Transportation Maps
  General maps by the Virginia Department of Transportation (VDOT).
• Virginia Geographic Information Network
  Maps and geographical information from the Virginia Dept. of Emergency Management (VDEM).

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Historic

Sources for digitized historic maps, aerial photos, and more

• David Rumsey Historical Map Collection
  Over 140,000 digitized historic maps from the David Rumsey collection.
• Historic Map Works
  A “historic digital map database” with “several centuries of cartographic information.”
• Loudoun County Aerial Archive
  Official Loudoun County aerial maps from 1937 to present.
• Old Maps Online
  Provider that combines “digital map collections from multiple libraries.”
• OpenHistoricalMap
  A public-domain, community-driven “interactive map of the world throughout history.”
• Pastmaps
  Craig Campbell’s collection of maps and map tools “for historical research.”
• U.S. NOAA Historic Maritime Maps & Charts
  Historic maps and charts from the U.S. Office of Coast Survey (NOAA).
• USGS Historical Topographical Maps
  Historic topographical maps from the the U.S. National Geospatial Program (USGS).

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Nautical

Nautical charts and maps, live (AIS) ship tracking, and more.

• Charts: OpenSeaMap
  A community-driven, editable “free nautical chart” system.
• Charts: U.S. NOAA Nautical
  Official source for U.S. nautical charts from the U.S. Office of Coast Survey (NOAA).
• Tracking: CruiseMapper
  Cruise ship tracking, itinerary information, and more.
• Tracking: MarineTraffic
  Provider of worldwide vessel tracking information.
• Tracking: VesselFinder
  Provider of worldwide vessel tracking information.

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Specialty & GIS

Geographic information systems (GIS), map data sources, and specialized map tools.

• Google Earth (Desktop)
  Desktop GIS application to “create maps with advanced tools.”
• Google Earth (Online)
  Online system to “fly anywhere in seconds and explore hundreds of 3D cities.”
• NASA Earthdata GIS
  “Services, maps, apps, and tools” from NASA’s Earthdata Geographic Information System (EGIS).
• Natural Earth Datasets
  A “public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales.”
• QGIS
  Open-source “spatial visualization and decision-making tools for everyone” for desktop.
• QMapShack
  Open-source “consumer grade GIS software” for desktop.
• U.S. National Map GIS Services
  GIS data services from the U.S. Geological Survey (USGS).

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Topographic

Topographic maps and related resources.

• OpenTopoMap
  Free, worldwide topographic map based on OpenStreetMap and NASA SRTM elevation data.
• U.S. National Map topoBuilder
  Build topographic maps from the U.S. National Map by USGS.

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