Photogrammetric 3D model of a niche on the 20th floor of the Rožná uranium mine (- 1000 m below ground)

Photogrammetric 3D model shows a part of westward tunnel Z3-XX located on the 20th floor of the Rožná uranium mine roughly 1000 m below ground level. This illustrative model is a part of a much larger collection of nearly 200 similar models created between years 2018 - 2019 as a part of project "Obtaining data from deep horizons of Rožná mine" funded by the Radioactive waste repository authority of the Czech Republic (SÚRAO). These models have been used to determine actual state and frequency of brittle fractures within the range of 12th to 24th mine floors (600 - 1200 m below ground level).