Jogja River Project (JRP) is an interdisciplinary collaborative project among communities in Yogyakarta. This project has activities to discover Watershed (DAS) in particular in urban areas of Yogyakarta. Each search JRP exploration expedition where participants are divided into two teams to trace the watershed from both sides of the river. JRP is open to anyone who wants to follow the river to search participants share data in any form. All participants who take part in the JRP does not accept any form of material rewards.