The future spread of WNS could impact the most important hibernation sites for the endangered Indiana and Gray bats. Map sources: Pennsylvania Game Commission, U.S. Fish and Wildlife Service, West Virginia Division of Natural Resources, Ontario Ministry of Natural Resources, Bat Conservation International, National Atlas, North American Atlas, Natural Earth.

Obsidian Source Complex - Glass Buttes, Oregon | The maps available here are all produced by Northwest Research Obsidian Studies Laboratory and may be downloaded and freely used or modified for reports, books, websites, and other projects. We ask only that you give us explicit credit for them or provide a link back to www.obsidianlab.com. Higher resolution state source maps are available upon request.

The Institute for Spatial Information and Analysis at Western Washington University’s Huxley College of the Environment has released a new interactive web-map designed to display regional daily avalanche danger levels.

Did Google Maps almost cause a war in 2010? On Nov. 3 of that year, Edén Pastora, the Nicaraguan official tasked with dredging the Rio San Juan, justified his country’s incursion into neighboring Costa Rica’s territory by claiming that, contrary to the customary borderline, he wasn’t trespassing at all. For proof, he said, just look at Google Maps.

Greenland: Offshore hydrocarbon opportunities This map, which forms part of Maplecroft’s new oil, gas and mining-specific country risk report for Greenland, illustrates bathymetry and offshore hydrocarbon licensing block locations. This includes the blocks off the north-east of Greenland which form part of the 2012-13 licensing round.

This tension between Western states was anticipated by John Wesley Powell, the great frontier explorer and head surveyor of the West for the federal government back in the 1880s.

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