gneiss Click the image to see the original photo at maximum resolution (potentially large files). Click the title to see a full description, geolocation, and more. Photos 1 - 13 of 13 azgs_photo Octopus Rock of the Santa Catalina Mountains azgs_photo Stone wall at Saguaro National Park azgs_photo Altered & weathered mafic dike, Catalina Highway azgs_photo Telegraph Pass, Gila Mountains, Arizona azgs_photo Mylonitic gneiss of the Rawhide Mountains azgs_photo Banded gneiss on the Catalina Highway azgs_photo Arizona Rocks postcard azgs_photo Mylonitic gneiss in Rawhide Mountains, western Arizona azgs_photo Tilted siltstones and Lincoln Ranch reverse fault, Buckskin Mountains, western Arizona azgs_photo Folds in pegmatitic gneiss of Soldier Canyon azgs_photo Mylonitic gneiss exposed along Mt. Lemmon Highway azgs_photo Mylonite exposed along Mt. Lemmon Highway, Santa Catalina Mountains azgs_photo Mylonitic gneiss, Rincon Mountains, Arizona