DOME STRUCTURE IN CONGLOMERATE 561 
talline rocks, and are separated from the conglomerate by a fault, 
the latter, however, having no apparent relation to the origin of the 
dome. The bedding of the conglomerate is plainly marked by the 
lines of protruding pebbles and cobbles on the south side of the rock. 
Fic. 1.—View of Eagle Rock, a conglomerate dome, seen from the west, showing 
its relation to the surrounding topography: front elevation 80 feet. 
The blocks immediately in front are fragments of the layer or shell, 
the remaining parts of which form the prominent overhanging 
V-shaped block. This layer was from six to eight feet through, and 
possibly more. A crack extends upward under the north arch of the 
overhanging block but none is present under the south arch, the block 
and adjacent dome face meeting in a solid concave junction. The 
