There are many ways to learn about the landscape from an archaeological perspective; field walking being one of them. Surveying the landscape is important when understanding the initial archaeological phases and evidence of habitation.
Oral history is another way to learn about regions which may not have so much written about it. Kato Drys in Cyrpus in a prime example; many people know their local history from the generations of stories that were passed down to them.
faunal life is also key to interpret how areas were used and cultivated. It is possible to understand a great Deal just by studying the species and location of trees. These ways of surveying landscapes sometimes means that there is no need to excavate a site as there is enough information on top of the land to give information as to how the it was used many years ago.