Editorial. Research Papers. Infiltration on mountain slopes: a comparison of three environments (C.P. Harden, P.D. Scruggs). Drainage, sediment transport, and denudation rates on the Nanga Parbat Himalaya, Pakistan (K. Cornwell, D. Norsby, R. Marston). Spatial distribution of sediment storage types and quantification of valley fill deposits in an alpine basin, Reintal, Bavarian Alps, Germany (L. Schrott, G. Hufschmidt et al.). Impacts of reforestation and gravel mining on the Malnant River, Haute-Savoie, French Alps (R.A. Marston, J.-P. Bravard, T. Green). Spatial variation in the power of mountain streams in the Sangre de Cristo Mountains, New Mexico (M.A. Fonstad). Local scouring and morphological adjustments in steep channels with check-dam sequences (M.A. Lenzi, F. Comiti). Predicting fine sediment dynamics along a pool-riffle mountain channel (S. Rathburn, E. Wohl). The geomorphic significance of step-pools in mountain streams (A. Chin). Equal-mobility bed load transport in a small, step-pool channel in the Ouachita Mountains (D.A. Marion, F. Weirich). Boulder weathering and erosion associated with a wildfire, Sierra Ancha Mountains, Arizona (R.I. Dorn). Influence of substrate on the distribution of the Hawaiian Silversword (Argyroxiphium sandwicense DC.) in Haleakala (Maui, HI) (F.L. Perez). Lithologic, structural, and geomorphic controls on ribbon forest patterns in a glaciated mountain environment (D.R. Butler, G.P. Malanson et al.). Zoogeomorphology in the Alpine: some observations on abiotic-biotic interactions (K. Hall, N. Lamont). Post-Oligocene river incision, southern Sierra Madre Occidental, Mexico (D.R. Montgomery, J. Lopez-Blanco). The shapes of cold, high mountains in sedimentary rocks (D.M. Cruden). Inferring erosional resistance of bedrock units in the east Tennessee mountains from digital elevation data (H.H. Mills). Glacial erosion and geomorphology in the northwest Sierra Nevada, CA (L.A. James). Advances in Holocene mountain geomorphology inspired by sediment budget methodology (O. Slaymaker, C. Souch et al.). Debris flows in Glacier National Park, Montana: geomorphology and hazards (F.D. Wilkerson, G.L. Schmid). Integrating soils and geomorphology in mountains - an example from the Front Range of Colorado (P.W. Birkeland, R.R. Schroba et al.). Remote sensing and geomorphometry for studying relief production in high mountains (M.P. Bishop, J.F. Schroder Jr., J.D. Colby). High spatial resolution, hyperspectral mapping of in-stream habitats, depths, and woody debris in mountain streams (W.A. Marcus, C.J. Legleiter et al.). Solifluction steps and risers, Lee Ridge, Glacier National Park, Montana, USA: a scale and pattern analysis (S.J. Walsh, L. Bian et al.).