The entrance of RHO is a large triangular door, guarded by Watchers and Scrappers. Inside, the Cauldron is a twisted mass of metal walls, machinery, and wires, similar to Cauldron SIGMA. However, RHO has a number of unique machinery operating in the area, such as giant wheel-like devices. Also, RHO will open into natural caverns. The most notable part of RHO is a giant mechanical "heart," which pumps Blaze to unknown locations. The entire Cauldron appears to be the region's primary collection and distribution hub for Blaze.
The following datapoints are obtained automatically during this quest and cannot be missed.