This Cache is an amateur radio APRScache, along with being an EarthCache, too. For ham radio operators, the geology portion of the cache is optional. To log the APRScache, simply log the location with your APRS-enabled radio at the EarthCache GPS coordinates. (Note: This site is inaccessible during winter months, due to snow).
Optionally, you can also log the EarthCache, which teaches more about the geology and metamorphic rocks of the Calaveras Complex, in Calaveras County, California. EarthCachers will use the Mohs hardness scale to make estimates of the hardness of Cougar Rock, in order to distinguish between carbonate (calcite or dolomite) and silicate (quartz) rock.
Here are the coordinates for the EarthCache on the Geocaching.com website:
"Cougar Rock and the Calaveras Complex"
| Cache name | APRScache/EarthCache: Cougar Rock and the Calaveras Complex |
| Hint | Park at the parking area and log the APRScache, then hike to the EarthCache location. |
| Country | United States |
| Gridsquare | CM98TF42NQ |
| Latitude | 38.219503 |
| Longitude | -120.378571 |
| Difficulty | Challenging |
| Terrain | Experienced outdoor enthusiasts only |
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