Introduction: Hydrological Application of GIS; HYP, Vol. 12 (6); p. 821u824; A. Gurnell and D. Montgomery; 1 Putting water in its place: a perspective on GIS in hydrology and water management; HYP, Vol. 12 (6); p. 823u834; M. J. Clark; 2 Data and databases for decision support; HYP, Vol. 12 (6); p. 835u842; A. M. Roberts and R. V. Moore; 3 The treatment of flat areas and depressions in automated drainage analysis of raster digital elevation models; HYP, Vol. 12 (6); p. 843u856; L. W. Martz and J. Garbrecht; 4 A phenomenon-based approach to upslope contributing area and depressions in DEMs; HYP, Vol. 12 (6), p. 857u872; W. Rieger; 5 Large scale distributed modelling and the utility of detailed ground data HYP. Vol. 12 (6): p. 873u888; F. G. R. Watson, R. B. Grayson, R. A. Vertessy and T. A. McMahon; 6 Application of a GIS-based distributed hydrology model for prediction of forest harvest effects on peak streamflow in the Pacific Northwest; HYP, Vol. 12 (6); p. 889u904; P. Storck, L. Bowling, P. Wetherbee and D. Lettenmaier; 7 Modelling runoff and sediment transport in catchments using GIS; HYP, Vol. 12 (6); p. 905u922; A. P. J. de Roo; 8 Deciphering large landslides: linking hydrologic, groundwater, and slope-stability models through GIS; HYP, Vol. 12 (6); p. 924u942; D. J. Miller and J. Sias; 9 Regional test of a model for shallow landsliding; HYP, Vol. 12 (6); 943u956; D. R. Montgomery, K. Sullivan and H. Greenberg; 10 Regional-scale assessment of non-point source groundwater contamination; HYP, Vol. 12 (6), p. 957u966; K. Loague and D. L. Corwin; 11 Synoptic views of sediment plumes and coastal geography of the Santa Barbara Channel, California; HYP, Vol. 12 (6); p. 967u980; L. A. K. Mertes, M. Hickman, B. Waltenberger, A. L. Bortman, E. Inlander, C. McKenzie and J. Dvorsky; 12 Morphological and ecological change on a meander bend: the role of hydrological processes and the application of GIS; HYP, Vol. 12 (6); p. 981u993; A. M. Gurnell, M. Bickerton, P. G. Angold, D. Bell, I. Morrissey, G. E. Petts and J. Sadler; Index.