This text, Depths and Densities, constitutes the report of a workshop of the same name that Femke Snelting, Helen Pritchard and Jara Rocha conducted during transmediale 2019 as part of their long-term project Possible Bodies. Possible Bodies, a disobedient action-research project, works with “the body” as a complex, concrete, and at the same time fictional entity. Moreover, its participants analyze it in the context of technological infrastructures and techniques such as tracking, modelling, and scanning. In text report, Jara Rocha compiles voices and quotes from the experiences of the workshop: a trans*feminist experiment in which open-source applications for geo-modeling were collectively examined, especially in relation to various regimes in which geo-modeling operates—regime examples are truth, representation, language, or political ideology. Referencing the aim of the workshop, to disrupt and redirect the extractivist tendency of tools for earth surveyance and calculation, the report is written in the form of a “bug report.”