tioga pass

On our way to the eastern Sierra watershed we drove up over the Sierra Nevada from the west, through Tioga Pass, and down into Lee Vining on the shores of Mono Lake. At Tioga Pass there was some interesting geologic phenomenon...


Erratic: (glacial geology) A rock fragment carried by glacier ice or by floating ice and deposited when the ice melted at some distance from the outcrop from which the fragment was derrived. Gennerally of bolder size, although the fragments range from pebbles to house-size blocks. syn: perched block, exotic, erratic block, erratic boulder, glacial erratic, glacial boulder, traveled.
 
More erratics...
Martini Glass with erratic by Belle Marino.