By W. H. Storms, Assistant in the Field.
There has been no marked development of mines in this county since the
last report was issued, excepting in some of the districts of the
Colorado Desert, of which mention will be made. The general geological
and topographical features of this county have been so fully described
in former reports that to repeat them here is unnecessary. At various
times within the past two years new discoveries have been announced, and
these have been developed to a greater or less extent, and in some
instances, at least, with encouraging results.