From 1982-84, the Ontario Geological Survey conducted an inventory of peatlands in 16 study areas across Ontario. Field investigations were performed by private-sector consulting firms, necessitating precise project specifications and a standardized approach. The first year's investigations were modelled on the New Brunswick and Finnish systems but were later modified. This report describes the 1984 field-work methods, covering field work, mapping and profiling, and report writing. Directions are given for both detailed and reconnaissance evaluations of the peat stratigraphy and peatland vegetation.