Here are two images of the horseshoe in relation to the trailhead. The topo is the same scale as the aerial. I don't have photo-editing software available to me now, but if you know how to handle it, you might want to make one of the two photos somewhat transparent and overlay it on the other, then combine them. It will give you a better idea of the terrain in the area.
As one of the posters mentioned, you might consider scoping the upstream section of the horseshoe before climbing the ridge to put in so you know where to get out. You could even consider "creating" a landmark (on the other side of the creek so it doesn't get disturbed), such as a pile of rocks or a stick jammed into the ground in a recognizable way, etc.
You may notice on the topo a black dashed line leading from the trailhead along the creek, then up over the ridge. This is the trail.