In "The Outcasts of Poker Flat," when the people of Poker Flat arrive at the camp, what do they find?

Although the outcasts are actually heading towards Sandy
Bar, due to the tiredness of the travellers, and in particular the reluctance of the
Duchess to go any further, the group stop and make camp at a place on the road. This
location is what I assume you are referring to in your question. The description of this
location appears to be particularly inviting. Note how the narrator describes
it:

The spot
was singularly wild and impressive. A wooded amphitheatre, surrounded on three sides by
precipitous cliffs of naken granite, sloped gently toward the crest of another precipice
that overlooked the valley. It was, undoubtedly, the most suitable spot for a camp, had
camping been advisable.

Thus
the travellers find a spot that is ideal for making camp, and thanks to the tiredness of
the Duchess, and especially the alcohol that they all consume afterwards, the travellers
lose all desire to carry on further up the narrow and precipitous track, and thus they
all stay there.