River flooding has become a serious disruption for community which lives in downstream area of a watershed. Comal Watershed is annually experience river flooding caused by Comal River. Therefore, it is necessary to proper mitigation planning. This study organized the arrangement of river flooding non-structural mitigation planning. Qualitative approach was used in this study; not to mention the research design utilzed literature study and field survey. Literature study was used for finding out the river flood events record and affected area in downdstream area of Comal Watershed. Meanwhile, field survey was conducted to overview the socio-cultural condition of the community which live in it. The results indicated that river flooding non-structural mitigation planning area in downdstream area of Comal Watershed consisted of spatial planning in harmony with landuse management of Comal Watershed, detection and prediction of the Comal River discharge conditions through recording and observing hydrometeorological data, management planning of riparian zone, Disaster literacy toward schools and community, community communication system improvement, local wisdom enhancement, evacuation route arrangement, early warning system utilization, disaster simulation and reforestation. Mitigation planning is not only the responsibility of the government, but requires awareness and cooperation from the community.

Utilization of Drones, also known as UAV (unmanned aerial vehicles), is currently widely used to evaluate changes in land use, disasters, monitoring regional spatial planning, identifying regional changes, environmental changes, and mapping regional administrative boundaries. Administrative boundaries are boundaries or imaginary lines that are only found on maps and not on the ground in accordance with applicable legal provisions but are only marked with an object that can be recognized by the user, for example stakes, gates, walls, and so on. This study aims to provide information about the actual boundaries of the area according to the current situation and conditions by testing the level of accuracy of Drone photos and comparing them in the field. This study uses a survey method and manual interpretation. This research was conducted in parts of the administrative area of Kuantan Tengah District, namely Pasar Taluk Village and Simpang Tiga Village. The selection of the study area was due to several factors, such as the area's high population density, fast development growth, and being located in the center of Teluk Kuantan city. Aerial photos produced by the Phantom 4 Pro Drone in this study have a spatial resolution of 0.5 meters, thus providing clear and detailed object appearances that can be identified using the ArcGIS application in the Pasar Taluk Village and Simpang Tiga Village areas. Keywords: Drone, land, boundary, region, identification