Challenging either descending or ascending. Most riders will probably get off bike in a spot or two. "Unofficial split to left on ascent is a better trail bed. "Official" trail has lots of soft sand. Difficult for cyclists and horses. Horses may do better on the official trail to avoid colliding with descending bicycles tend to come down pretty fast. Cyclists use this trail primarily as a descent from Trail 05 to Engineer Canyon Rd and they come down the "unofficial" trail. Bicycles descend the "unofficial" segment and onto the main trail at 15 to 20 mph. Ascending speeds average 6 mph.
Black Diamond Multiuse trail. Bi-directional use: Bicycle>Foot>Horse

| Start | Finish | Elevation loss (ft) | Elevation Gain (ft) | Average Slope (%) | Maximum Slope (%) |
| Engineer Canyon Rd | 05 | 26 | 82 | 12 |
Segments
| Segment start | Segment finish |
Distance (mi) |
Total Distance (mi) |
Comments |
| Engineer Canyon Rd | 05 |
0.17 |
0.17 |
Steep stretch, very soft sand. From EC rd up, official trail stays to the right at 0.02 miles. |

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