ABSTRACT
This chapter describes the frequency, magnitude, and spatial distribution of rockfalls and rockslides in the Highwood Pass area in the Canadian Rocky Mountains. Analysis of frequency and magnitude of geomorphic events has been an important theme in geomorphology, as exemplified by the landmark paper by M.G. Wolman and J. P. Miller and the more works of P. E. Gretener and M. Gage. Relatively little work has been done on the high frequency/low magnitude rockfalls and rockslides. While rockfalls and rockslides are not restricted to high mountain areas, they and their results are probably best displayed in such areas. The distribution of related landforms provides important clues about the spatial distribution of rockfalls and rockslides. High-magnitude slope failures can occur anywhere steep slopes are present, and the resulting deposits can block major valleys.
