  We study the topology of a Ricci limit space $(X,p)$, which is the
Gromov-Hausdorff limit of a sequence of complete $n$-manifolds $(M_i, p_i)$
with $\mathrm{Ric}\ge -(n-1)$. Our first result shows that, if $M_i$ has Ricci
bounded covering geometry, i.e. the local Riemannian universal cover is
non-collapsed, then $X$ is semi-locally simply connected. In the process, we
establish a slice theorem for isometric pseudo-group actions on a closed ball
in the Ricci limit space. In the second result, we give a description of the
universal cover of $X$ if $M_i$ has a uniform diameter bound.
