BULL. GEOL. SOC. AM, 



Vol. 15, 1903, pl. 56 



Figure 1. — Gorge of Riviere Seche, about % of a Mile from the Ska. Looking Southwest. June 25, 1902 



Bed of new ash is shown in the gorge, which was cut into it by a mud flow on the afternoon of June 24, 

 1902. Gorge was deepened from 2 feet to 12 feet in less than 1 hour's time. Upper part of blutfs bordering 

 canyon shows effects of sand-blast erosion, which, however, has carried away but little of the surface, as 

 indicated by the uninjured condition of the artificial water way near the man standing at the left of view. 



Figure 2. — Harbor of Basse Pointe. Looking West-northwest. March 25, 1903 



Shows new bar and beach formed by debris brought from mountain slopes in 1902 and distributed alonj 

 the coast by currents. Several great mud flows occurred in the Basse Pointe river in May and June, 1902. 



GORGE OF RIVIERE SECHE AND HARBOR OF BASSE POINTE 



