Seven Mile Draw is a short, normally dry canyon near Marble Canyon that flows, when it has water, into the Colorado River. There is one high pour off of about 80' (24m) to negotiate by rappelling. After that, it is a short hike to the river, that is, if you aren't stopped by a subsequent pool as we were were.
This view is about 75' up-canyon from the anchor point for the rappel where my hiking partner is standing and looking over the pour off. As you can see in the panorama, the canyon opens up much wider not far past the pour off.