[24] The day's trip can be followed with reasonable assurance. A league from the stopping point at the eastern end of the Montezuma Hills near Rio Vista would bring the party to the foot of Grand I. [Isla de los Quenemsias]. The opening to the starboard was the main channel of the Sacramento. Following to the left, they soon encountered the entrance to Cache Slough to port. This they passed by and therefore must have entered Steamboat Slough. At 6 leagues (actually much less) they saw the fork of Steamboat Slough and Sutter Slough and followed the latter, which appears to continue straight ahead whereas Steamboat Slough seems to bear northeast. Both sloughs in fact lead back again to the main channel of the Sacramento. The description of the oak groves conforms to those of other early navigators of the Sacramento Basin. [25] The opening or slough encountered at the end of one league was probably Miner Slough--although clearly it was not the one passed on the preceding day. The village of the Chucumnes was probably on Sutter I. near this point. Here also must be the place where the river "subdivides" into three branches; north, west, and south, Miner Slough being the western branch and Sutter Slough both the northern and southern arms. The afternoon voyage carried the party very slowly up Sutter Slough to a point near the head of Sutter I. where they stopped apparently on the west bank. The 18th they crossed the top of Sutter I. by way of the short connecting slough and entered the main stream of the Sacramento half a mile above Paintersville. [26] Probably the slough which runs around Randall I. to the southeast. [27] The halt was made probably somewhere near Richland. [28] Since the distances in leagues are unreliable, it is impossible to specify exactly where Duran's party stopped on the night of May 19 or where they set up the cross and turned around on May 20. At the latter point they were above the last of the important sloughs, Elkhorn Slough, for the ground appeared as if it would be dry in the fall of the year and Duran thought that an approach by land would be better than one by water. The best guess is that the cross was set up somewhere near Freeport, and in any case below the junction of the American R. at Sacramento. [29] It is doubtful that this "hill" was the Marysville, or Sutter, Buttes because not only are these heights much more than 10 leagues distant, but also because in the month of May there is no snow on them. It is more likely that Duran saw some of the higher summits of the Coast Range in Napa or Lake counties. [30] Again somewhere near Richland, probably on Merritt I. [31] This statement places the party definitely at the head of Grand I. The following sentence is misleading. They left Steamboat Slough on the right and took the main river which runs to the left. There is no other waterway fitting the description in this area.