The mountains you are looking at are part of the Franconia Range and like the rest of the White Mountains are among the oldest in the world. They date back to a period in geological time more than 400 million years ago when this area was covered by an inland sea.
In the millions of years that followed, the sea drew back from the land and sedimentary rocks were exposed. Great compressional forces creating heat and pressure, cuased physical and chemical changes to take place. This was followed by molten rock being thrust upward from deep within the earth. Erosion then removed many thousands of feet of metamorphic rock and exposed the granite underneath, leaving a low rolling plain with an elevation close to that of sea level. Some 60 million years ago a regional uplift began and the land surface was gradually raised to an elevation of between four and five thousand feet.
More than two million years ago, the great Ice Age reached this area and ice accumulated until these peaks were buried with ice up to a mile in thickness. As the Ice Age drew to a close, between 25,000 and 8,000 years ago, the old ice melted leaving the land much as you see it today. Since then weathering and erosion is again taking place as a geological force.
From these peaks, melting snows and summer rains cascade down the steep mountain sides helping
Location. 44° 5.797′ N, 71° 40.881′ W. Marker is in Franconia, New Hampshire, in Grafton County. Marker can be reached from U.S. 3. Click for map. Marker is in Franconia Notch State Park. Marker is in this post office area: Franconia NH 03580, United States of America.
Other nearby markers. At least 8 other markers are within 4 miles of this marker, measured as the crow flies. A Bit of History (within shouting distance of this marker); Franconia Notch State Park (about 300 feet away, measured in a direct line); Eastern Brook Trout (about 300 feet away); The Flume (about 400 feet away); Betty and Barney Hill Incident (approx. 0.8 miles away); Clark's Bridge (approx. 3.2 miles away); Quinten E. Mulleavey (approx. 3.2 miles away); Borasaurus (approx. 3.3 miles away). Click for a list of all markers in Franconia.
Categories. • Environment • Natural Features •
Credits. This page originally submitted on , by Bill Pfingsten of Bel Air, Maryland. This page has been viewed 215 times since then and 81 times this year. Photos: 1, 2. submitted on , by Bill Pfingsten of Bel Air, Maryland. This page was last revised on June 16, 2016.