Before the end of the year 1889 Stanton returned with another party of 12 men and three boats to continue the survey. It may be that the names of the first survey crew together with the initials and word "DCC+PRR Survey" appearing on the cliff wall at the mouth of Mystery Canyon mark the dividing point between the two surveys (Historical site 135, see below). The work of surveying was carried on through Marble and Grand canyons to the Gulf of California where it was completed in April, 1890. During the course of the survey in the lower part of Glen Canyon, several gold placer claims were staked by the members of the party including R. B. Stanton. The first of these was the "San Juan Placer," (Historical site 97) just above the mouth of the ...