| 1.1 (116.2) | On the right side of the road, just north of the small isolated brown knob, the unconformity between the lower Ricardo Formation and the "basement" rocks is exposed. |
| 0.3 (116.5) | Turn right to Red Rock Canyon Parking Lot - STOP 3. Here we will view and examine the character of the castellated Ricardo
(Plate 2)
, and by walking a short distance to the left and north, a faulted pink tuff-breccia within the formation (Plate 3)
 . |
| | Return to highway and turn right (north). |
| 1.4 (117.9) | Climbing sand dune on left. |
| 0.3 (118.2) | The black unit is a basalt flow which is at the top of the lower Ricardo Formation. On up the highway, we pass numerous exposures of north-dipping light-colored, soft-weathering upper Ricardo beds, here and there capped by gently south-dipping Pleistocene gravels. |