Trace Fossils in Bolsa Quartzite |
![](tracefossilsbolsaquartize.jpg) |
*The Bolsa Quartzite is a thin to medium bedded red to dark red sandstone. The bedding planes often weather out into picturesque patterns. |
![](bolsaimage.jpg) |
*Source: Southern Arizona Guidebook Three available from the Arizona Geological Society. |