It's worth pointing out that Split Rock appears again in the background in the above shot — directly above the second of the three horses — but it's easy to miss because the angle downplays the split.
Range Busters movie "Arizona Stagecoach," above. The context again places it in the mobile home village area — and this shot finally convinced me that the wedge rock seen in this location is in fact Chili Pepper. I don't think Chili Pepper survived the construction of the mobile home park, but I've only recently discovered its general location, and I'll have to snoop around a bit to make sure.
Cactus Hill in the background (including a nice view of its rockiest section) and the line of trees that bordered Sheep Flats to the west. The flat area is filled with mobile homes now, the line of trees is almost entirely gone and the 118 Freeway has cut through the area, but you can still see Cactus Hill, as in the shot below.
This view of End Rock today is from the other side, from the northwest, and I think it shows what the park designers were going for — placing the rock in what is admittedly a picturesque planter setting. That's End Rock (or a reasonable facsimile) near the center of the photo, with part of the mobile home park's rec room visible at the right. A couple of other famous movie rocks can be seen as well: Range Rider Rock, sticking out above the mobile home at the center of the shot, and Corner Rock at the far left. Corner Rock, which was "shaved" to make room for the road, was commonly seen in the movies in tandem with End Rock, usually shot from the other side — from the south — with many a stagecoach, rider and chase group arriving between the two rocks.
A number of the movies featured in this post are exceptional Iverson productions and deserve to be highlighted: "Rocky Mountain Rangers" (1940), "The Lone Rider in Ghost Town" (1941), "Shadow Valley" (1947) and "The Hawk of Powder River" (1948) are all on my list of "Great Iverson Movies." (Note that in this case the term "great" refers to the quality of the rocks and other Iverson features seen in the movies, not necessarily the quality of the acting, direction, script, action sequences, etc. However, typically the camera work in these movies is really good.) Check out the links above to Amazon if you're interested in snagging copies of any of these. Not all of them are available, but I've included a few links to what I think is good stuff. The 2-DVD set with "Hawk of Powder River" and "Stage to Mesa City" — another really strong Iverson movie — is an especially good deal.