Lolo Trail, ascending into Bitterroot Mountains — John Ordway: September 13, 1805

one which Cap’ Lewis rode [which] we could not find, and a colt
also, we then loaded our horses and proceeded on a Short distance
and came to a warm Spring2 which run from a ledge of rocks and
nearly boiled and issued out in several places it had been fre-
quented by the Savages, a little dam was fixed and had been used
for a bathing place, we drank a little of the water and washed our
faces in it. a handsome green on the creek near this Spring, we
had Some difficulty here in finding the direct trail, we went round
a bad way came on the trail again and halted to dine at or near
the head of Sd Creek at a beaver dam. then proceeded on as-
cended a high rough mountain over took the hunters who had
killed a deer 2 of them sent back to look for Cap* Lewises horse.
we crossed the dividing ridge3 and a number of Spring runs and
found it to be only about half a mile from the head Spring of the
waters running East to the head Spring of the waters runing west,
each heading in an open marshy Swamp which is level and full of
Springs, we came on a creek running west on which we Camped.4