There are all manner of reasons why this space should prove to be so intriguing. Not least amoung these is the photographs ability to articulate something of what took place outside of the frame. For example lets consider two images with a similar composition and subject matter:
On the left we have a detail from Dennis Oppenheim's Accumulation Cut while on the right we have Wall's Crooked Path. In both images the focus of attention is the path in the centre of the frame. But our response, our mine at least, is quite different to each image. With Oppenheim i recognise that this is a channel in the ice. Also knowing what i know about ice it seems very unlikely that this channel would have formed naturally. So i conclude that this is a channel that has been cut in the ice by a human protagonist. In the full version of this piece (which can be found in an earlier post) the process by which this channel formed is made explicitly clear. But even without such information we are given the suggestion that some sort of intervention has taken place.
With Wall things are a bit different. We see the path but the location and the material with which it has been made do not immediately suggest the sort of intervention that Oppenheim enacted. While Wall could certainly have made the path himself, in a style similar to Long, it could equally be the result of everyday traffic. In short there is an element of doubt here for the viewer. Is Wall presenting us with a document here or the record of an intervention? With Wall this dilemma is enhanced by our knowledge of his working practices and use of heavily constructed imagery. In short we can never sure if Wall has constructed this image or just recorded a situation as he found it.
The purpose here is not to provide answers to this uncertainty. Rather it is to reflect on the way the photograph presents its subject and how this leads us to consider a range of processes that took place outside of the photograph. With Oppenheim we have an image that does not privilege the space of the photograph. The nature of his intervention makes for a less evocative image and it is rather the process of creating the work that we concentrate on rather than the image of it. With Wall though there is no sense that the work exists elsewhere. Instead it is all here in the confines of the frame. And while we find no resolution in this space we are given the wonderful provocation to imagine.