I observe that the journal talks about how Lewis and Clark and the people who accompanied them had decided to set out early and passed the front of the island opposite to where they had camped last night, they then had breakfast on the mouth of a large creek on the south side. They had set their course to being north west and a short distance from where they were at the mouth of the creek there were paintings and carving in the limestone rock with white red and blue flint of good quality. In which the native Americans had taken a great deal of. I interpret this as a way for the author to make a detailed entry and record of their experiences and by giving specific land marks and other details like their course the author is able to make it easier for someone to retrace their steps if they were to. I can connect this to the tertiary source in how it talks about how the main objectives of this journey were to gain geographic and scientific information on the land and its plant and animal life. A second goal was also in the diplomatic and commercial interest of the United States who wanted to find a water route to the pacific in order to gain a stronger position in the fur trade. This is seen in the highlighted section in how the author notes how the land is by noting the creek and the landmark of the paintings on the rock. Context: Jefferson had wanted to expand the united states and compete with Canada in the fur trade. He had wanted to do so earlier than the expedition of Lewis and Clark and attempted so before the Louisiana purchase in 1803. However the expedition came to fruition following the purchase in which Lewis and Clark along with their group were tasked with exploring the vast recently purchased land.