Felice Williams created fantastic geological trail signs in honor of her late husband Mike Williams (geologist and beloved educator), who lead many students on this same hike, now named "Mike's Trail" in his honor.
These signs are located along two parts of this trail: 1. The Opal Loop and 2. Devils Canyon. Below are pdf files you can download to see the graphics for each sign. The first pdf shows a map of the location of the trail and the points of interest where the signs are located (by number).
You can also view these signs in their intended geological context by taking the hike!
1. The Shape of the Land (and trail map/location)
2. The Explanation is in the Geology
3. Life along the River
4. Silt, Sand and Gravel
5. Rounded Rocks
6. Why Are All These Hills Here?
7. The Dakota Fromation Marks the Coming of the Sea
8. The Southern View
9. The Northern View
10. Burro Canyon
11. Protected by Ancient Landslides
12. Rounded Rainbowed Badland, The Jurassic Morrison Formation
13, The Salt Wash Member
14. Folds
20. Faults - Where Rocks Give Way