This compact muon imaging system is engineered for high-resolution density measurements in challenging field environments, with a form factor optimized for deployment in constrained spaces such as tunnels, mines, and smaller access areas. The detector operates passively using naturally occurring cosmic muons, enabling non-invasive, continuous monitoring of subsurface features without disrupting surrounding operations. Critically, the system is designed for modular deployment. Single units can be used for targeted, high-resolution imaging of localized structures or anomalies.