It is clear that Cañizares, starting from what is now called Angel Island, crossed the Bay south of Point Richmond and proceeded northward between Point San Pablo and Point San Pedro into San Pablo Bay (Bahia de Guadelupe or Redonda). He explored Petaluma Creek (Estero de Nuestra Señora de la Merced) and the sloughs near Mare Island. Except for the southwest he found this bay surrounded by arid, treeless hills, thus agreeing with the opinion of the explorers by land. Just before entering Carquinez Strait, he saw a large rancheria. Although this village is not shown on the 1776 map it appears on the 1781 map at the southwest side of the western mouth of the strait. It is no doubt the same site described by Font. One league, or perhaps three miles, from the entrance Cañizares encountered what he regarded as a spacious inlet or cove. Wagner (1937) and Cutter (1950) both state that this was Southampton Bay, opposite Port Costa (Puerto de la Asumpta). Cutter (p. 13) also claims that it has been filled with mud since 1775 and largely obliterated, but gives no evidence in support of the opinion. Cañizares describes Army Point, near Benicia (Puerto de los Evangelistas on the maps), and then gives an account of Suisun Bay which he says contained numerous islands filled with tules. Toward the upper end of these, on the maps, is shown fresh water. After attempting to penetrate the rivers, and running aground on sand bars, Cañizares returned to Angel Island before embarking for a reconnaissance of the southern area of the Bay. His description of the lower delta region is too confusing to be of value. He evidently did not fully understand the relations of the Sacramento and San Joaquin rivers at their junction. Cutter (1950, p. 113) states, regarding vegetation, that Cañizares found the north shore of the Bay covered with trees and the south shore arid and dry. Cañizares says the vegetated shore was "east" and the arid shore was "west." Both maps depict trees on both shores, but with the heavier concentration on the south side. The 1781 map uses for "Bosques de buenas Maderas" the symbol "Q." The latter appears at the southeast end of San Francisco Bay, in the vicinity of Oakland and Alameda, on the south side of the rivers at the head of Suisun Bay, and on the north side, well above Suisun Bay. Small groups of trees appear on both maps at each entrance of Carquinez Strait, in the vicinity of Pinole and of Martinez. There is no real evidence that there were trees on the north side of Carquinez Strait.