a, BUTTE RUIN

b, AZTEC SPRING RUIN

c, SUROUARO, YELLOW JACKET SPRING RUINS (Photographs by Jacob Wirsula)

a, BLANCHARD RUIN

b, BLANCHARD RUIN, MOUND 2

c, SUROUARO, YELLOW JACKET SPRING RUIN (Photographs by Jacob Wirsula)

a, ACMEN RUIN (Photograph by T. G. Lemmon)

b, MUD SPRING RUIN (Photograph by Jacob Wirsula)

a, BUILDING ON ROCK PINNACLE, NEAR STONE ARCH, SAND CANYON

b, STONE ARCH, SAND CANYON (Photographs by J. Walter Fewkes)

a, TOWER IN SAND CANYON

b, UNIT-TYPE HOUSE IN SAND CANYON (Photographs by T. G. Lemmon)

a, STONE ARCH HOUSE, SAND CANYON

b, CLIFF-HOUSE, SHOWING BROKEN CORNER (Photographs by Jacob Wirsula)

a, SCAFFOLD IN SAND CANYON

b, STORAGE CIST IN MANCOS VALLEY

c, PICTOGRAPHS NEAR UNIT-TYPE HOUSE IN CAVE

(Photographs by T. G. Lemmon)

DOUBLE CLIFF-DWELLING, SAND CANYON (Photography by T. G. Lemmon)

a, CLIFF-DWELLING UNDER HORSESHOE RUIN

b, CLIFF-DWELLING, RUIN CANYON (Photographs by Jacob Wirsula)

a, KIVA OF CLIFF RUIN, LOST CANYON

b, CLIFF RUIN, LOST CANYON (Photographs by Gordon Parker)

a, SQUARE TOWER IN SQUARE TOWER CANYON

b, TOWER IN McLEAN BASIN

c, RUIN IN HILL CANYON, UTAH (Photographs by T. G. Lemmon)

HEAD OF SOUTH FORK, SQUARE TOWER CANYON (Photograph by Geo. L. Beam. Courtesy of the Denver & Rio Grande Railroad)

NORTH FORK OF SQUARE TOWER CANYON, LOOKING WEST a, Hovenweep Castle. b, Hovenweep House. c, Tower No. 9. d, Tower on point at junction of North and South Forks. e, Twin Towers. f, Unit-type House. (Photograph by Geo. L. Beam. Courtesy of the Denver & Rio Grande Railroad)

a, HOVENWEEP HOUSE AND HOVENWEEP CASTLE, FROM THE SOUTH

b, HOVENWEEP CASTLE, FROM THE WEST

c, HOVWENWEEP CASTLE, FROM THE SOUTH (Photographs by Jacob Wirsula)

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)

a, HOVENWEEP CASTLE, WITH SLEEPING UTE MOUNTAIN, SOUTH FORK, SQURE TOWER CANYON

b, ENTRANCE TO SOUTH FORK, SQUARE TOWER CANYON (Photographs by Geo. L. Beam. Courtesy of the Denver & Rio Grande Railroad)

STRONGHOLD HOUSE, SQUARE TOWER CANYON (Photograph by Geo. L. Beam. Courtesy of the Denver & Rio Grande Railroad)

a, HEAD OF HOLLY CANYON

b, SOUTH SIDE OF HOVENWEEP CASTLE, SQUARE TOWER CANYON (Photographs by Geo. L. Beam. Courtesy of the Denver & Rio Grande Railroad)

a, HOLLY CANYON GROUP, FROM THE EAST (Photography by Jacob Wirsula)

b, GREAT HOUSE AT HEAD OF HOLLY CANYON, FROM THE SOUTH (Photograph by T. G. Lemmon)

c, UNIT-TYPE RUIN, FROM THE EAST (Photograph by T. G. Lemmon)

a, GREAT HOUSE AT HEAD OF HOLLY CANYON, FROM THE SOUTH

b, RUIN B AT HEAD OF HOLLY CANYON, FROM THE WEST

c, GREAT HOUSE AT HEAD OF HOLLY CANYON ( (Photographs by Jacob Wirsula)

a, GREAT HOUSE, HOLLY CANYON

b, STRONGHOLD HOUSE AND TWIN TOWERS, SQUARE TOWER CANYON (Photographs by Geo. L. Beam. Courtesy of the Denver & Rio Grande Railroad)

a, HOVENWEEP CASTLE

b, SOUTHERN PART OF CANNONBALL RUIN, McELMO CANYON (Photographs by T. G. Lemmon)

a, SQUARE TOWER WITH ROUNDED CORNERS, HOLLY CANYON (Photograph by Jacob Wirsula)

b, HOLLY TOWER IN HOLLY CANYON (Photograph by Jacob Wirsula)

c, HORSESHOE HOUSE (Photograph by T. G. Lemmon)

b, HORSESHOE RUIN (Photograph by Jacob Wirsula)

b, BOWLDER CASTLE, ROAD (WICKYUP) CANYON (Photograph by T. G. Lemmon)

a, CLOSED DOORWAY IN BOWLDER CASTLE, ROAD (WICKYUP) CANYON (Photograph by J. Walter Fewkes)

b, BROKEN-DOWN ROUND TOWER, SQUARE TOWER CANYON (Photography by Jacob Wirsula)

a, NORTH SIDE OF TOWER, SQUARE TOWER CANYON (Photograph by Jacob Wirsula)

b, D-SHAPED TOWER NEAR DAVIS RANCH, YELLOW JACKET CANYON (Photograph by Jacob Wirsula)

c, MODEL OF TOWERS IN McLEAN BASIN (Photograph by De Lancey Gill)

ROUND TOWER AND D-SHAPED TOWER IN McLEAN BASIN (Photograph by J. Walter Fewkes)

a, D-SHAPED TOWER IN McLEAN BASIN, SHOWING CROSS SECTION OF WALL

b, ROUND TOWER IN McLEAN BASIN, SHOWING STANDING STONE SLAB (Photographs by J. Walter Fewkes)

a, HOLMES TOWER, MANCOS CANYON

b, LION TOWER, YELLOW JACKET CANYON (Photographs by T. G. Lemmon)

a, TOWER ABOVE CAVATE STOREHOUSES, MANCOS CANYON BELOW BRIDGE

b, TOWER ON MESA BETWEEN ERODED CLIFFS AND BRIDGE OVER MANCOS CANYON ON CORTEZ SHIP-ROCK ROAD (Photographs by T. G. Lemmon)

a, TOWER ABOVE CAVATE STOREHOUSES, MANCOS CANYON BELOW BRIDGE

b, ERODED SHALE FORMATION IN WHICH ARE SMALL WALLED CAVATE STOREHOUSES (Photographs by T. G. Lemmon)

a, RESERVOIR NEAR PICKET CORRAL, SHOWING RETAINING WALL

b, KIVA, UNIT-TYPE HOUSE, SQUARE TOWER CANYON (Photographs by T. G. Lemmon)

PICTOGRAPHS, YELLOW JACKET CANYON