adrant from north to east. The
arc of the circumference of a circle with center at Livermore and radius
of 12 miles passes approximately from San Ramon in the northwest, well
south of Mount Diablo, across the very rough lower spurs of the mountain
massif to the mouth of Kellogg Creek near Byron to the northeast. From
here it runs along beyond Altamont, close to Mountain House and Midway,
as far as upper Corral Hollow to the southeast. This entire stretch is
devoid of any indication of substantial aboriginal occupancy, either in
the eighteenth-century documents or in modern archaeological research.

Let us also note Amador's total: 14 leagues east of the Mission, or
fully 35 miles. The horseback trail of 1805 followed pretty much the
shortest highways of today: from Mission San Jose to Sunol and thence to
Livermore via Pleasanton or directly across the low hills east of Sunol.
By the first route the distance is 18 miles, by the second 16 miles.
Using the larger value, 18 miles, the rancheria would have been not 12,
but 17 miles beyond Livermore, which would have put it definitely in, or
on the edge of, the San Joaquin Valley.

This conclusion agrees with Cutter's, referred to above, with respect
to the location of the attack, but the theory that these Luechas
actually were "residents" of the inner coast ranges and hence to be
included in the area here being considered is contradicted by the
following points.

1. As indicated above, no contemporary account explicitly states that an
inhabited village was encountered or entered by the Californians during
the Cuevas campaign.

2. There is no other documentary evidence for villages actually in the
hills due west of the San Joaquin Valley floor.

3. In a letter to Governor Arrillaga dated February 28 at San Francisco
(Bancroft Trans., Prov. St. Pap., XIX: 39-40), Jose Arguello mentions a
second expedition by Sergeant Peralta "to the sierra where the Indians
were who attacked Father Cuevas." In the course of this journey by
Peralta: "A chief of the big rancheria on the river San Francisco,
called Pescadero, came to give Sergeant Peralta the assurance that
neither he nor his people had taken part in the attack against Father
Cuevas and his guard." Since Pescadero was the main rancheria of the
Bolbones, near Bethany, and since the latter were a delta tribe of
either Miwok or Yokuts stock, it is unlikely that the chief would have
feared a confusion of identity with a tribal g