1770-1838 1774-1809 2010h-954 930 altitudes ancient antiquities architecture auckland(region) aukland balneology bioticcommunities blockdiagrams buildingstones calendar california canada cartography clark climaticchanges coins congresses curiositiesandwonders descriptionandtravel earthsciences ecologicalregions england erosion geology geomorphology glaciallandforms géomorphologie géomorphologieglaciaire healthresorts historicalgeography historicbuildings historicsites history hydrologiccycle hydrology icesheets imageanalysis ireland landcover landscapepainting landscapes landuse lewis lewisandclarkexpedition(1804-1806) meriwether monuments mountains na2555a83 naturalhistory naturalmonuments naturestudy newhampshire newzealand northernireland norway paleoclimatology petrology pictorialworks plantcommunities platetectonics popularworks prehistoric prehistoricpeoples quaternary quipu relief(géographie) remotesensing rivers science scotland socialenvironment soilerosion soilformation soilpiping(hydrology) solution(chemistry) stereoscopicviews stratigraphic submarinetopography subsurfacedrainage syntheticapertureradar tuolumneriverwatershed volcanoes wales waterchemistry wb525 weather william yosemitenationalpark