
Stop #1 Willms Road near Knights Ferry. Observing the Table Mountain latite and trying to tease-out the relationship with it and the Mehrton Formation in the…

Table mountain latite. Vesicles, porphyritic texture (large white K-feldspars in microscopic dark matrix crystals) attest to its volcanic origin.

Professor Garry Hayes weaves an entertaining narrative of the fauna that lived in the area 9-10 million years ago when the Table Mountain Latite erupted.…

Notebook is sitting on meta conglomerates that are part of the Foothills Terrane and were accreted onto California from a volcanic island arc about 200Ma. So…

A student checks-out the metaconglomerate. OID irrigation flume on the right, Stanislaus River in the center.

Students get a snack while listening to Garry explain the history of Red Hills and the BLM "Land of Leftovers" and the modern geology / flora that makes it such…

The rocks in the Red Hills are composes of Serpentine and have a high abundance of nickel, selenium and iron, making it very hard for plants to grow. Those that…

Donnell Vista! Here to see the Sierra granites (here about 87 million years old) and the 10.8Ma Table Mountain latite of the Dardanelles in the distance. How is…