22 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
spilling of a considerable body of the weaker strata hundreds of 
feet forward from the mountain base. Overlying the weak strata 
are two groups of stronger beds, D, D, and F, F, separated by a 
Fic. 5.— Mt. Nebo, at the south of the oblique monocline of the Wasatch: land- 
slide at right base. 
somewhat weaker group; and as a result the range here regains its 
height in the fine summits of Mt. Nebo. The upper strata were 
regarded by Professor Hinckley as corresponding to the Carboniferous 
series that he knows well in the Provo mass. A view of this part of 
the range, looking southeast from a point a few miles north of Mona 
Fie. 6.— Diagram of facetted spurs and recent fault scarp, Mt. Nebo Wasatch. 
is given in figure 5; the oblique subsequent valley is here less clearly 
visible than from points farther south. Three small cirques are 
seen on Mt. Nebo, the northernmost being poorly defined. A small 
glacier is said to occupy a cirque on the eastern side of the mountain. 
