as Tanner's. In 1825, William H. Ashley attempted to float the Green (Buenaventura) River to either what was called "Salt Lake" (actually Sevier Lake) on Tanner's map, or the Colorado River, to which the fur traders suspected it flowed. He started in present-day Wyoming, and after passing through the treacherous Gates of Lodore, aborted the trip prior to entering Desolation Canyon. Despite not having gotten close to the Colorado River, he concluded that the Green did empty into it, and continued his exploration by engaging Provost to lead him on an overland excursion to observe the GSL. The next spring his partner, Jedediah Smith, explored areas the north and west of the GSL, but found no rivers flowing from it. He sent more men to float around the shoreline to the west and south, and they were also unsuccessful in finding the "Los Mongos R." and "R. Timpanogos". However, this information was delayed in reaching cartographers, and in 1836 Tanner repeated the depictions of the three rivers, except he identified the "R. Timpanogos" as "R. S. Sacramento ou (or) Timpanogos". So, when, in 1841, John Bidwell embarked over the Rocky Mountains to California, he was advised to take carpenters tools with them, to build canoes and sail from the GSL to the Pacific. After Ashley retired from the fur trade his partnership with Smith was bought out by Smith and two new partners, Smith focused on finding the Buenaventura. In 1826, he led an expedition south from southern Idaho, and upon reaching the mouth of the Jordan River on the southeast end of the GSL, traveled south along to the east side of Utah Lake. Since he identified the Jordan River as the outlet of Utah Lake, he did not explore the lake further. He encountered the Sevier River on its northeast-flowing stretch, and assuming it continued to flow north to Utah Lake, dismissed it as the possible Buenaventura and continued southwest to Southern California. In 1827 and 1828 he tracked the western flank of the Sierra Nevada in its full length, without registering a river that passed through the range, but he heard the Sacramento River referenced as the "Buenaventura" by Luis Antonio Argüello. A map by Albert Gallatin (1836), based on information from Smith's travels, labels the Sacramento River as the Buenaventura and equated Lake Timpanogos with the GSL, but did not try to connect the two. In