Inthisnature-writingclassic,JohnMuireloquentlyportraysthevalleyhecalledhis“marvelouswonderland,”providingdetaileddescriptionsofitsflora,fauna,andnaturalfeatures.Hedemonstratesarareabilitytoportraybothscenicsplendorsandmomentsofpulse-poundingexcitement,suchaspeeringoverthedizzyingbrinkofYosemiteFallsorscalingsnow-coveredSouthDometowatchhishalf-mile-longshadowdanceontheseaofcloudsbelowhim.