a, WEST END OF TWIN TOWER,
SHOWING SMALL CLIFF-HOUSE
(Photograph by J. Walter Fewkes)
b, TWIN TOWERS,
SQUARE TOWER CANYON,
FROM THE SOUTH
(Photograph by Jacob Wirsula)
c, TOWER 4,
JUNCTION OF NORTH AND SOUTH FORKS,
SQUARE TOWER CANYON
(Photograph by Jacob Wirsula)
PLATE 16