Frontera (or Whites Ranch) is on the Texas side of the Rio Grande,between 
B 1 Paso and Canutillo, and probably at the bend in the Rio Grande where 
that river turns SE.towards El Paso after having flown s-en^rally due 
south for most of the distance in which it is the boundary between 
Texas end New Mexico. Bertlettil: 194 , states that it was used as an 
astronomical observatory by the Boundary Commission. ’’Soon after we 
gave it up it was destroyed by the Apaches" The town or settlement 
no longer exists. It was obviously near the north end of the narrows 
of the Rio Grande in which the river cuts thru the hills northwest 
of El Paso »or Bartlett, 1:198-9, states thet,-"The bottom land does not 
appear for some distance beyond the observatory,or White’s Ranch" 
Bartlett seys,l.c.134, s8 y e that Frontera^. 8 mile? above Hart's mill 
(at the falls of the Rio Grande) just north bf the American settlement 
at El Paso, It is in El Paso County, Texas „ n > . .. „ 
"the Cottonwoods" mentioned by Wright July 26th. seems to refer 
to no town. It was probably given in reference to their campamong ■ 
the cottonwoods , on the Rio Grande bottoms, It is probably 
about haif way between El Paso.and Las.Cruces, in Dona Ana County,N.M. 
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Dona Awy-n was an old Mexican town,because of border incident 
it was becoming depopulated in Wright’s time, and now is of very 
minor importance. Bartlett,Is 200 , says it is 8 miles (north) from 
Las Cruces. Standiey,C.U.S.Nat.Herb. 13 : 155 ,says it is 1-2 miles 
east of the Rio Grande in Dona Ana County,New Mexico . 
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