Crossword clues for Gravel ridges.:ESKERGravel ridge in a glacierAASGravel ridge in Denmark.OSARGeological term for gravel ridges.OSARGravel ridges.ESKERGravel ridge.OSARGlacial gravel ridgesESKERRidge of gravel.ESKARRidge of gravel.ESKERRidge of gravel, in geology.ESKERRidge of glacial gravel.ESKARRidge of glacial gravel.OESARRidge of glacial gravel: Var.