Agricultural sites were almost exclusively remnant raised fields, though one small set of probable prehistoric agricultural terraces was recorded. Raised fields are a common sight in the Titicaca Basin, distinguishable as low, fairly subtle swales and dips in marshy flat areas ([Erickson 1994,Lennon 1982,Lennon 1983,Smith et al. 1968]). These features were typically photographed and were measured by pacing. They were given site numbers continuous with those of the ceramic scatters. It is worthwhile to note that raised field groups on the Peninsula were relatively uncommon and relatively small (< 1 ha) compared to those in the adjacent Pampa Koani, where raised field groups are numerous and very large (cf. [Kolata 1986,Kolata 1991,Seddon 1994a]). This is an immediate and compelling fact and is very informative when considered in light of other differences between these two areas. This will be discussed at considerable length in later chapters.