Places: CA-High Peaks

High Peaks-2,638 (North Chalone Peak)   (36.4857983, -121.1982565)
High Peaks Trail-2,221' (North Chalone Peak)   (36.4813539, -121.1957563)
High Peaks (North Chalone Peak)   (long, lat)
High Peaks (North Chalone Peak)   (long, lat)

Description:
From GNIS:

• High Peaks Trail:
• Described as a strenuous, steep trail with excellent view.
• Also called Condor Gulch Trail: U.S. Department of the Interior, National Park Service maps and brochures; various edition dates. The name and year of publication follow (if known): Pinnacles/1995
•  High Peaks also called Pinnacles Rocks: U.S. Geological Survey. Geographic Names Post Phase I Map Revisions. Various editions. 01-Jan-2000.
• Also noted on GNIS: The feature called High Peaks is located within Pinnacle Rocks in the Gabilan Range, 4.8 km (3.2 mi) N of North Chalone Peak.

Trips:

• March 4, 2015-Day hike with meetup group up to the High Peaks and through Bear Gulch Caves
• February 20, 2013-Day Hike with meetup group with camping two nights at the Pinnacles

References:

•   SoCal Hiker trail description
• American SouthWest
• Modern Hiker
• GeoTripper on Rhyolite Breccia rocks at Pinnacles
•  Rhyolite-Rhyolite is an igneous, volcanic rock, of felsic (silica-rich) composition (typically > 69% SiO₂—see the TAS classification). It may have any texture from glassy to aphanitic to porphyritic. The mineral assemblage is usually quartz, sanidine and plagioclase (in a ratio > 2:1—see the QAPF diagram). Biotite and hornblende are common accessory minerals.   From Wikipedia
• Breccia-The word has its origins in the Italian language, in which it means either "loose gravel" or "stone made by cemented gravel". A breccia may have a variety of different origins, as indicated by the named types including sedimentary breccia, tectonic breccia, igneous breccia, impact breccia, and hydrothermal breccia. From Wikipedia
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Pictures:

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