Digital polygon dataset of Watershed boundaries of Bhutan. This dataset is extracted using the SRTM DEM. The boundaries were refined using LandSat images of 30m resolution. The watershed boundary was further divided into sub-watershed boundaries particularly in the glaciated region.

Digital polygon dataset of Major watersheds of Hindu Kush Himalayan (HKH) Region. This dataset is Basic Vector layer derived from ESRI Map & Data 2001.

Digital polygon dataset of Drainage System of Afghanistan. This dataset is acquired from ESRI Data and Maps 2001.

Digital line data of River Network of Ludhi Khola Watershed, Gorkha, Nepal. This dataset is created using Topographic sheet data at scale of 25,000/50,000, of 1995 acquired from National Geographic Information Infrastructure Project (NGIIP), Dept. of Survey, Kathmandu, Nepal. The data was prepared for the Reducing Emission from Deforestation and Forest Degradation (REDD) Pilot Project. This is a joint project of ICIMOD with Asian Network for Sustainable Agriculture and Bio-resources (ANSAB) and Federation of Community for Forest Users of Nepal (FECOFUN) funded by NORAD.

Digital line data of Water bodies of Ludhi khola Watershed, Gorkha, Nepal. This dataset is created using Topographic sheet data at scale of 25,000/50,000, of 1995 acquired from National Geographic Information Infrastructure Project (NGIIP), Dept. of Survey, Kathmandu, Nepal. The data was prepared for the Reducing Emission from Deforestation and Forest Degradation (REDD) Pilot Project. This is a joint project of ICIMOD with Asian Network for Sustainable Agriculture and Bio-resources (ANSAB) and Federation of Community for Forest Users of Nepal (FECOFUN) funded by NORAD.

River Systems Vector digital data prepared based on map of Gorkha District (1:125,000), published by Suspension Bridge Division (SBD) 1989.

Digital polygon dataset of Perennial Rivers and lakes of Hindu Kush Himalayan (HKH) Region. This dataset is basic vector layer derived from ESRI Map & Data in 2001.

Digital polygon dataset of River Basins of Afghanistan. This dataset is basic vector layer derived from Afghanistan Information Management Systems (AIMS), Afghanistan.

Digital line data of Drainage Network of RDT Centre of Bhutan. This dataset is prepared by ICIMOD based on ground survey 2008.

Digital polygon dataset of Lakes of Afghanistan. This dataset is created using 1:1,000,000 scale map of Afghanistan and derived from Afghanistan Information Management Systems (AIMS), Afghanistan.