Analysis of Cave Morphology in Wediombo and its Surrounding Area, Gunungkidul

Abstract Wediombo and its surrounding area is an isolated highland at the southern rim of Gunung Sewu sub-zone. This has contact between old volcanic rock with limestone that cave system underground-hydrological condition. study aims to determine morphological characteristics area. data was collected by observation mapping using BCRA 5C grade. Data analysis carried out passage morphometric morphographic analysis. shows pattern distribution clustered following joint fault lines. The morphometry show Duren Greweng caves are horizontal straight passage, while Pulejajar considered be a meander passages. Based on value width height ratio, shape passages semi-circular canyon direction northeast southeast. Results morphography single caves, leveled curvilinear branchwork pattern. cross section variation passage’s rectangular elliptical canyon, gorge sharped keyhole, chamber.