Geological History of the Polar Caves Historical

Geological History of the Polar Caves Historical (HM1TZK)

Location: Rumney, NH 03266 Grafton County
Country: United States of America

N 43° 46.832', W 71° 46.993'

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Inscription
Nearly five billion years ago a great ball of cosmic gasses began to cool and condense forming our solar system. This cooling process continued for 3½ billion years solidifying our planet, Earth, and eventually forming the first continental glaciers. Durin the Paleozoic Era warm climates caused glacial melting covering most of the planet with water. Pressures forced great quantities of magma to erupt from the depths of the Earth creating land masses and huge mountains. Over the next 150 million years, weathering and erosion removed thousands of feet of overlaying sediments exposing much of the granite roots of these White Mountains. In the last million years several glaciers have crept southward from the Arctic further eroding and fracturing the landscape. Fifty thousand years ago the last of these enourmous ice sheets rose to a height of more than a mile as it passed over the mountains above you. The force of this ice loosened and deposited granite boulders from the east side of Mt. Haycock forming the prominent cliff above. The top of this peak, being badly fractured when the glacier receeded, cracked and loosened adding to the boulder deposit at its base. Thus fourteen to twnety thousand years ago, this random deposit of boulders formed the passages of what today we call The Polar Caves. Archeozoic
Era 3 billion years. Proterozoic Era 1 billion years. Paleozoic Era 320 million years. Mesozoic Era 110 million years. Cenozoic Era 70 million years.
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Details
HM NumberHM1TZK
Tags
Placed ByPolar Caves Park
Marker ConditionNo reports yet
Date Added Saturday, August 27th, 2016 at 1:02pm PDT -07:00
Locationbig map
UTM (WGS84 Datum)19T E 276033 N 4851262
Decimal Degrees43.78053333, -71.78321667
Degrees and Decimal MinutesN 43° 46.832', W 71° 46.993'
Degrees, Minutes and Seconds43° 46' 49.92" N, 71° 46' 59.58" W
Driving DirectionsGoogle Maps
Area Code(s)603
Closest Postal AddressAt or near 705 NH-25, Rumney NH 03266, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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