One of the large rim-rock ruins may be seen on the left bank of Ruin
Canyon in full view from the Old Bluff Road. The ruin is an immense
pile of stones perched on the very edge of the rim, with no walls
standing above the surface. The most striking feature of this ruin is
the cliff-house below, the walls and entrance into which are visible
from the road (pl. 9, _b_). It is readily accessible and one of the
largest in the country. On either side of the Old Bluff Road from Ruin
Canyon to the “Aztec Reservoir” small piles of stone mark the sites
of many former buildings of the one-house type which can readily be
seen, especially in the sagebrush clearings as the road descends to the
Picket corral, the reservoirs, and the McElmo Canyon.