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Curated OER
Unesco: Spain: Ibiza, Biodiversity and Culture
Ibiza provides an excellent example of the interaction between the marine and coastal ecosystems. The dense prairies of oceanic Posidonia (seagrass), an important endemic species found only in the Mediterranean basin, contain and support...
Curated OER
Unesco: United States of America: Redwood National and State Parks
Redwood National Park comprises a region of coastal mountains bordering the Pacific Ocean north of San Francisco. It is covered with a magnificent forest of coastal redwood trees, the tallest and most impressive trees in the world. The...
Curated OER
Unesco: Palau: Rock Islands Southern Lagoon
Rock Islands Southern Lagoon covers 100,200 ha and includes 445 uninhabited limestone islands of volcanic origin. Many of them display unique mushroom-like shapes in turquoise lagoons surrounded by coral reefs. The aesthetic beauty of...
Curated OER
Etc: Alaska Boundary Controversy, 1867 1903
A map of southeastern border of Alaska and Canada showing the area of boundary dispute and the boundary established by the Hay-Herbert Treaty between Britain and the United States in 1903. The map shows the coastline and fjords of the...
Curated OER
Educational Technology Clearinghouse: Maps Etc: Hay Herbert Treaty, 1903
A map of the southern border of Alaska and Canada showing the area of boundary dispute and the boundary established by the Hay-Herbert Treaty between Britain and the United States in 1903. The map shows the coastline and fjords of the...