Browse Caches By Tag: aprs RSS

APRScache/EarthCache: Tertiary Volcanic Domes

Mon, 22 Jan 2024 00:46:07 +0000

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. Optionally, you can also log the EarthCache, which teaches more about the geology of the rocks in the Western Sierra Nevada Metamorphic Belt, in Calaveras County, California. The rocks observed are near the Melones Fault Zone, in the Don Pedro terrane, and earthcachers will compare and contrast the angle of repose for the slopes of 2 volcanic domes, approximately 12-7 million years old. Here are the coordinates for the EarthCache on the Geocaching.com website:"Tertiary Volcanic Domes"

APRScache/EarthCache: Butte Fire Geology and Debris Flow Hazards

Mon, 22 Jan 2024 00:40:53 +0000

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: Radio and cell service may be questionable in this area). Optionally, you can also log the EarthCache, which teaches more about the Butte Fire and observations of the geology along the roadway, in the burned sub-watershed, above the Mokelumne River. Most of the Butte Fire burned in rocks of the Calaveras Complex, with a smaller portion having burned granitic rocks. Your task here is to examine the bedrock at the GPS location in order to determine the role it played in erosion, sediment production, and mass wasting within the sub-watershed. Here are the coordinates for the EarthCache on the Geocaching.com website:"Butte Fire Geology and Debris Flow Hazards"

APRScache/EarthCache: Hell's Kitchen Xenoliths and Erratics

Mon, 22 Jan 2024 00:31:40 +0000

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: The area may be covered in snow during winter months). Optionally, you can also log the EarthCache, which teaches more about the geology of granitic rocks in the high Sierra. You will observe features associated with granitic rocks, but not derived from the original magma that formed those rocks. Additionally, you will understand more about geologic rates of change and determine a relative rate of weathering of the granitic bedrock vs. the xenoliths observed. Finally, you will learn a bit more about how these features formed and why they can be important to geologists. Here are the coordinates for the EarthCache on the Geocaching.com website:"Hell’s Kitchen: Xenoliths and Erratics"... Read more

APRScache/EarthCache: Garnet Hill

Mon, 22 Jan 2024 00:25:10 +0000

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. Optionally, you can also log the EarthCache, which teaches more about skarn deposits and ore mineralogy in Calaveras County. The EarthCache is located on Garnet Hill up a 4 wheel drive road that is only accessible (at the time the EarthCache was created) by hiking. The elevation change is <1,100 feet (from ~3,300 to ~4,400 feet) and can be considered strenous, but the site is worth a visit to see the interesting geology. Please leave the site as you found it. Here are the coordinates for the EarthCache on the Geocaching.com website:"Garnet Hill"

APRScache/EarthCache: Cape Horn Roof Pendant

Sun, 21 Jan 2024 22:07:36 +0000

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. Optionally, you can also log the EarthCache, which teaches more about what a geological "roof pendant" is. Cape Horn is located on Highway 4, east of Bear Valley and Lake Alpine, west of Mosquito Lake and Pacific Grade Summit, in the Stanislaus National Forest. The EarthCache is located on the upper slopes of a glaciated valley, overlooking a portion of the drainage of the North Fork of the Stanislaus River. The road is closed during winter months and radio/cell service is limited. Here are the coordinates for the EarthCache on the Geocaching.com website:"Cape Horn Roof Pendant"

APRScache/EarthCache: Sword Lake Debris Flow

Sun, 21 Jan 2024 21:57:52 +0000

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: radio and cell service are limited here). Optionally, you can also log the EarthCache, which teaches more about the geology of the Dardanelles area, in the Carson-Iceberg Wilderness, Stanislaus National Forest, California. The rocks observed are part of the Tertiary/Neogene volcanics and glacial till deposits, covering the older granitic basement rocks. EarthCachers will hike to the edge of a debris flow, make observations of surficial processes, then estimate the depth of the debris flow, just like a geologist might do, working for a government agency. Here are the coordinates for the EarthCache on the Geocaching.com website:"Sword Lake Debris Flow"

APRScache/EarthCache: Sonora Pass Volcanics and New Plate Boundary

Sun, 21 Jan 2024 21:41:33 +0000

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. Optionally, you can also log the EarthCache, which is at the base of Sonora Peak on the Pacific Crest Trail (PCT). The purpose of this cache is to teach more about the geologic history of the central Sierra Nevada Mountains and to deepen your understanding of the unique geology of the Sonora Pass area. This is part of a series of EarthCaches in the region. Note: This EarthCache is inaccessible between late Fall, Winter, and late Spring due to snow and road closure. Radio and cell service is limited here, too, so log the ARPScache from the nearest location available. Here are the coordinates for the EarthCache on the Geocaching.com website:"Sonora Pass Volcanics and New Plate Boundary"... Read more

APRScache/EarthCache: Columns of the Giants Fault Zone and Source

Sun, 21 Jan 2024 21:31:35 +0000

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: radio and cell service is very limited here; log the APRScache at the nearest site with reception). Optionally, you can also log the EarthCache, which teaches more about the geology of the Columns of the Giants Geologic Site, Stanislaus National Forest, Tuolumne County, California. You will visit and learn more about the probable source of the lava flow, the age, and the likely fault zone that exists at the vent location. Then you will observe a dike and estimate its physical and geometric characteristics. Here are the coordinates for the EarthCache on the Geocaching.com website:"Columns of the Giants Fault Zone and Source"

APRScache/EarthCache: Donnell Vista Granitoid

Sun, 21 Jan 2024 21:22:59 +0000

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: radio and cell service may be very challenging at this location; send a log from where you can make a contact). Optionally, you can also log the EarthCache, which teaches more about the geology of granitic, or granitoid, rocks in the high Sierra. You will classify the rock type by name using a QAP ternary diagram. Additionally you will use a cumulative percentage graph to determine elevation characteristics of the area. Finally, you will learn a bit more about how this U-shaped valley formed. Here are the coordinates for the EarthCache on the Geocaching.com website:"Donnell Vista Granitoid"

APRScache/EarthCache: Trail of the Gargoyles

Sun, 21 Jan 2024 21:13:56 +0000

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: The road is closed in the winter, due to snow; additionally, in summer, the US Forest Service road requires higher clearance vehicles for accessing the site. Optionally, you can also log the EarthCache, which teaches more about the younger volcanic deposits that emanated from the Little Walker Volcanic Center, east of Sonora Pass. EarthCachers will learn more about Sonora Pass geologic history, what a lithofacies is, grain size classification, sorting, and rounding of volcanic sediments. These characteristics can help determine relative distances volcanic sediments traveled from their source. Here are the coordinates for the EarthCache on the Geocaching.com website:"Trail of the Gargoyles"