it Font (F2) says:

In some places its banks are very precipitous, and in others it
has a narrow beach on which, near its mouth [i.e. the western
end], there are great piles of fresh-water mussels. The hills
which form this channel are without trees, but those on this
side have plentiful pasturage, while those on the other side
appeared bald, with little grass, the earth being reddish in
color.

During the afternoon the party traveled from the vicinity of Crockett
"two leagues east along the top of the hills close to the water, and one
east-southeast up the canyon which had some oaks and other trees, by
which we again came out at the top of the hills near the water."
According to Bolton (1930, IV: 375n), this point was on the bluffs just
west of Martinez.

The implication of Anza's account and the rather specific statement by
Font seem to support Crespi's description. There was little oak or other
type of woody plant on the south shore west of what is now Port Costa.
From there to Martinez the canyons held a fair growth of oak. In those
areas not bearing oak, the primary plant cover was grass. Neither Crespi
nor Anza nor Font gives any hint of the heavy infiltration of shrubby
vegetation, such as _Baccharis_, poison oak, or other chapparal species,
which now extend down the entire slope of the hills from Crockett to
Martinez. The deduction is reasonable, although strict proof is lacking,
that the modern vegetation has entered the region since 1775.

On this day Anza and Font made the acquaintance of two new species of
fish, the sturgeon and the salmon, good descriptions of which are
recorded by both explorers. Furthermore, the day was notable for
encounters with the natives. Shortly after breaking camp the Spaniards
were met by ten Indians who invited them to the nearby village (which
Bolton says was at Tormey, about 2 miles west of Crockett). This village
was large; Font estimated the population as 400 persons and Anza as 500.
Font's account (F2) of his visit is long and circumstantial, but its
value for ethnographic detail is such that it merits reproduction in
full:

Their method of welcoming us was like this: at sunrise the ten
Indians came, one behind another, singing and dancing. One
carried the air, making music with a little stick, rather long
and split in the middle, which he struck against his hand and
which sounded something like a castanet. They reached t