Oilslick is a color elevation map layer by Drew Roos designed to highlight fine terrain detail and work across the full range of Earth's elevation. It aims to maximize lightness contrast for small elevation differences and avoid favoring lower elevations, using a zig-zagging lightness pattern with each cycle covering 500m and hue completing one cycle over 9,275m of land elevation.
CalTopo is a backcountry mapping tool offering trip planning tools and topographic maps, including USGS and USFS topos and aerial imagery. It supports printing to geospatial PDFs, exporting to KMZ and MBTiles, elevation profiles and terrain analysis, and finding shared maps from other users.
An online map of England's light pollution and dark skies. Users can search by postcode, district or National Character Area, tick boundaries in the legend to display them, and click the map for detailed information about an area. The map uses OpenStreetMap and World Imagery data and was developed by LUC.
Earthdata Search is a browser-based tool for searching, discovering, visualizing, refining and accessing NASA Earth Observation data. The site requires a JavaScript-aware browser, and an upgraded browser is needed to use it. Earthdata Access is offered as a Section 508 accessible alternative.
Historic Aerials is an online collection of historical aerial imagery, topographic maps, and modern aerials covering the United States. An interactive viewer lets users explore locations, zoom, and switch between decades, with imagery dating back to the 1920s. The service offers subscriptions and individual purchases of digital downloads and prints.
The official Organic Maps Telegram group covers Organic Maps, described as open-source, privacy-friendly, fast and detailed offline maps for iOS and Android. The group also links to ways of supporting the app's development and to a channel for Russian speakers.
NukeSim is an educational nuclear explosion simulator with effects modeling. It lets users run scenarios on a map, compare weapon profiles, view blast, thermal, radiation and fallout overlays, browse a global arsenal database, read articles and follow external nuclear news. The project states it is inspired by NUKEMAP.
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CalTopo is a backcountry mapping tool offering trip planning tools and topographic maps, including USGS and USFS topos and aerial imagery. It supports printing to geospatial PDFs, exporting to KMZ and MBTiles, elevation profiles and terrain analysis, and finding shared maps from other users.
An online map of England's light pollution and dark skies. Users can search by postcode, district or National Character Area, tick boundaries in the legend to display them, and click the map for detailed information about an area. The map uses OpenStreetMap and World Imagery data and was developed by LUC.
Earthdata Search is a browser-based tool for searching, discovering, visualizing, refining and accessing NASA Earth Observation data. The site requires a JavaScript-aware browser, and an upgraded browser is needed to use it. Earthdata Access is offered as a Section 508 accessible alternative.
Historic Aerials is an online collection of historical aerial imagery, topographic maps, and modern aerials covering the United States. An interactive viewer lets users explore locations, zoom, and switch between decades, with imagery dating back to the 1920s. The service offers subscriptions and individual purchases of digital downloads and prints.
The official Organic Maps Telegram group covers Organic Maps, described as open-source, privacy-friendly, fast and detailed offline maps for iOS and Android. The group also links to ways of supporting the app's development and to a channel for Russian speakers.
NukeSim is an educational nuclear explosion simulator with effects modeling. It lets users run scenarios on a map, compare weapon profiles, view blast, thermal, radiation and fallout overlays, browse a global arsenal database, read articles and follow external nuclear news. The project states it is inspired by NUKEMAP.
