Snapshots of mass and semi-major axis from 0.3 to 4.1 Myr for narrow ring run n05. The initial locations of the rings are 12.2 AU (yellow), 18.3 (orange), 27.3 (red), and 40.9 AU (purple). The symbol size scales with the mass of the body as ∝ m^1/3. Planets with mass ≥0.1 M_⊕ have solid circles. The Solar System planets (+) and Pluto and Eris (◇) are shown for reference as well as the pebble isolation mass (dashed line).