Rho Camp

 is an Enclave camp north-west of Vault 108 and south-west of the Robot Repair Center. It is an unmarked location, and so isn't registered on your Pipboy 3000. Like all Enclave encampments, it does not appear until after The Waters of Life.

RHO experiment notes
Camp RHO is part of an Enclave isolation program, inhabited solely by an Enclave Officer and four Automated Turrets. The Officer carries an Experimental Rho ID, which renders the Turrets friendly to whomever holds it.

Notable loot

 * Experimental Rho ID, carried by the Enclave Officer.
 * One Enclave Crate, inside the metal cage.