Challenging single track which is a rutted technical trail with significant "steps" at rubber water bars and deep channels make it hard to pedal through. Poison Oak and brush encroaching on trail. For cyclists it is best done as a descent because of drop-offs at the rubber "water bars". "Unofficial" split occurs 0.17 miles from top of trail. If ascending, left fork is "official" trail. Bicycle speeds on descent are slow due to the gullies and soft sand but can peak at over 15 mph. Ascending speeds are not much above walking velocity since that is what most cyclists will be doing.
Black Diamond Multiuse trail. Bi-directional use: Bicycle>Foot>Horse

| Start | Finish | Elevation loss (ft) | Elevation Gain (ft) | Average Slope (%) | Maximum Slope (%) |
| 36 | Engineer Canyon Rd | 182 | 64 | 7 |
Segments
| Segment start | Segment finish |
Distance (mi) |
Total Distance (mi) |
Comments |
| 36 | "Unofficial split" |
0.17 |
0..17 |
Technical, sandy, channeled |
| "Unofficial split" | 37 | 0.28 | 0..45 |
soft sand in spots |
| 38 & 37 | 39 | 0.14 | 0.59 |
Firm sand |
| 38 & 39 | 38 & Engineer Canyon Rd | 0.02 | 0.61 |
Firm Sand |

Pictures
© Nick Mackenzie 2001-2002
Updated 10/30/06 12:16:18