Subcomponent dark matter having large interactions with the standard model or with itself can accumulate terrestrially over the age of the earth leading to massive build-ups. This thermalized population is too cold to be visible in traditional direct detection. In this talk I outline a few detection strategies including accelerating this slow dark matter with metastable nuclear isomers or with electrostatic accelerators like LUNA. Intriguingly such a terrestrial component could explain the neutron bottle-beam anomaly and can cause anomalous heating in cryogenic detectors.