  We engineered a two-dimensional magnetic lattice in an elongated strip
geometry, with effective per-plaquette flux ~4/3 times the flux quanta. We
imaged the localized edge and bulk states of atomic Bose-Einstein condensates
in this strip, with single lattice-site resolution along the narrow direction.
Further, we observed both the skipping orbits of excited atoms traveling down
our system's edges, analogues to edge magnetoplasmons in 2-D electron systems,
and a dynamical Hall effect for bulk excitations. Our lattice's long direction
consisted of the sites of an optical lattice and its narrow direction consisted
of the internal atomic spin states. Our technique has minimal heating, a
feature that will be important for spectroscopic measurements of the Hofstadter
butterfly and realizations of Laughlin's charge pump.
