*Title: Large deviations for random walks in a mixing random environment, and
other (non-Markov) random walks*

**Abstract:**
We extend a recent work by S.R.S. Varadhan on large deviations for random
walks in a product random environment, to include many non-Markovian random
walks. In particular, several classes of reinforced random walks, and of
random walks in Gibbs fields are included. We use the method of the point
of view of the particle. We bound the Radon-Nykodim derivative of two
environments, as viewed from two independent walkers, by how close the
future path passes by the past of the two walkers.