Contributions in geographical exploration . Photograph by C. 1. MaytiardLOOKING TOWARD KATAIAI PASS FROM BAKED high mud mark sloping down into the Valley on each si<le of the mudflow is very evident. VALLEY SLRROUNDEL) HV A ( (iNSPK IOUSniCdr WATER .M.\RK. The high water mark, sei)arating the chocolate tuff-covered basin of the Valley from the gray ash sloi)es of themountains before alltided to, imj)resscs one more and moreas he studies the phenomenon. It follows, in a general way. acontour line 200 to 300 feet above the floor of the Walley. Whileit thus reminds one of the shor


Contributions in geographical exploration . Photograph by C. 1. MaytiardLOOKING TOWARD KATAIAI PASS FROM BAKED high mud mark sloping down into the Valley on each si<le of the mudflow is very evident. VALLEY SLRROUNDEL) HV A ( (iNSPK IOUSniCdr WATER .M.\RK. The high water mark, sei)arating the chocolate tuff-covered basin of the Valley from the gray ash sloi)es of themountains before alltided to, imj)resscs one more and moreas he studies the phenomenon. It follows, in a general way. acontour line 200 to 300 feet above the floor of the Walley. Whileit thus reminds one of the shore line of a pond, it is obviously 122 The Ohio Journal of Science [Vol. XIX, No. 2,.


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Keywords: ., bookcentury1900, bookdecade1920, bookpublishercolum, bookyear1920