Cylinder Brep Faces / Edges

I have a Brep cylinder consisting of thre surfaces: the cylinder wall, and two planar caps.

I assumed that each of these surfaces (or Brep Faces if you will) would be accessible through the Brep.Faces property, but that is not the case; as this returns a single surface for the cylinder wall, and one plane at each of the two end-caps.

Now, if I try to extract the edges of this same cylindrical brep, it returns one trimmed surface (for each of the two end-caps) and one plane for the cylinder wall.

Will someone explain the best (most consistent) method for extracting brep faces from various types of brep geometry?  Or, how can I now sort the planes and surfaces from one another?

I have little experience programming; let me know if something is unclear.

Thanks.

Matt