  In this article, we study the dynamics of geodesic flows on Riemannian (not
necessarily compact) manifolds with no conjugate points. We prove the Anosov
Closing Lemma, the local product structure, and the transitivity of the
geodesic flows on $\Omega_1$ under the conditions of bounded asymptote and
uniform visibility. As an application, we further discuss about some generic
properties of the set of invariant probability measures
