ever, since our Mogollon remains are not early Mogollon, 
but probably assignable to the late Mogollon 8 period, 
they can be dated at approximately 900 A.D. (Wheat, 
1955). Just how much earlier than 900 A.D. is the ma- 
terial from the lower levels of Swallow Cave is not known. 
The presence of maize 30-36 inches below the earliest 
Mogollon remains suggests that they are considerably 
LEVELS: 
MOGOLLON 4 CULTURE =: 
te ite. 2 : 
Eg 3 
MOGOLLON 3. CULTURE 4 
—_ 5 | 
6 fF 
7k: 
ann aqiahanay: GF a NON-CERAMIC, BUT WITH __° }: 
TRENCHES 283 e ACORNS, MAIZE, UTILIZED !0 }* 
: STONE FLAKES, AND! | 
suetEew Coy ‘ CHARCOAL PRESENT 2b 
CAVE VALLEY, CHIHUAHUA £ + — 
3 Se 14 : 
fe] | 2 3 4 68 FT. 4 15 : 
SCALE " 16 |: 
WU Mss (sy 
The stratigraphy of two trenches in Swallow Cave, Chihuahua, 
Mexico, from which the majority of the cobs described in this paper 
were collected. From Levels 13 and 14, three cobs representing a pre- 
cursor of the modern Mexican race, Chapalote, were obtained. 
older. No dates from radiocarbon have yet been obtained, 
although it is hoped that such dates may be forthcoming. 
It is felt that these remains, the earliest we have en- 
countered in the northern Sierra Madre, strengthen the 
belief that early cultural connections did exist between 
Mexico and the southwestern United States and that a 
corridor for movement of such elements was the great 
Sierra Madre mountain massif with its series of north- 
south trending canyons. 
[ 159 | 
