Lewis Scouting, Clark Hauling
The August 4 record splits cleanly along a line of responsibility. Lewis, ranging ahead with a small party, produces by far the longest and most cartographic entry — a careful reconstruction of bearings (S.E. by E., then S.E., then S.W.), creek widths in yards, and a hydrological argument about which fork to follow. He inspects the confluence where a 50-yard “bould rappid & clear stream” comes in from the northwest and meets a gentler middle fork, and reasons from water temperature and turbidity:
its water is much warmer than that of the rappid fork and somewhat turbid, from which I concluded that it had it’s source at a greater distance in the mountains and passed through an opener country than the other.
On that inference alone Lewis writes a note recommending Clark take the middle fork, and leaves it on a pole at the forks. Clark, meanwhile, records none of this geography — because he has not yet reached the forks. His entry is brief and physical:
haul the Canoes over the rapids, which Suckceed each other every two or three hundred yards and between the water rapid oblige to towe & walke on Stones the whole day except when we have poleing men wet all day Sore feet &c.
Clark also notes he could not walk on shore because of a “turner” (tumor/boil) on his ankle — a small medical detail absent from every other entry.
The Sergeants and the Note That Wasn’t Yet Written
Ordway and Whitehouse, traveling with Clark’s main party, describe finding an earlier Lewis note — the one left August 2 or 3, not the pole-note Lewis writes this day. Their accounts are nearly identical in sequence and phrasing, consistent with the well-documented pattern of Whitehouse copying from or sharing source material with Ordway. Compare Ordway’s
Some of the mountains near the River has been burned by the natives Some time ago. the pine timber timber killed the cotten timber in some of the R. bottoms killd & dry also
with Whitehouse’s
Some of the Mountains near the River on L. S. has been burned by the natives Some time ago. The timber killed. not So much timber on the River as below.
The shared observations — burned mountainsides, two deer killed by the hunter, a goose and a duck taken, 15 miles made, camp on the south side among dry timber and rose bushes — track so closely that the entries function as a single sergeant’s-eye account in two hands. Whitehouse compresses; Ordway expands with beaver ponds and red willows.
Gass, the third sergeant, departs from this pair entirely. His entry is the only one that describes a separate event: ascending what he believes is the correct branch, climbing a high knob, realizing from the timber line that the river had forked below his position, recrossing, finding the north branch unnavigable, descending to the confluence, and leaving his own note for Clark — directing him to take the left hand branch. Gass is evidently with Lewis’s advance party, and his account of leaving a directional note dovetails with Lewis’s pole-note but adds the detail of the false ascent and the high-knob reconnaissance that Lewis omits.
What Emerges Only From the Composite
No single narrator captures August 4 whole. Lewis gives the geography and the reasoning behind the fork decision but says nothing of the labor downstream. Clark gives the labor and his ankle but knows nothing yet of the forks ahead. Ordway and Whitehouse fix the day’s mileage, game, and landscape — burned slopes, dead cottonwoods, beaver sign — that neither captain bothers to record. Gass alone preserves the false start up the wrong branch and the second note left at the confluence.
Read together, the entries also expose a slow-motion problem the expedition cannot yet see: Lewis is staking the route on a note pinned to a pole, written from inferences about water temperature, while Clark is still grinding upstream a day or more behind, wet to the waist, hauling on cordelles. The decision about which fork to ascend — which will shortly become the Beaverhead question — is being made unilaterally and transmitted by paper. Lewis’s confidence in his hydrological reasoning, Gass’s contradictory directive (“left hand branch”), and Clark’s ignorance of either note compose, in retrospect, a small archive of the communication strain that defined the expedition’s approach to the Continental Divide.
