The first stop on Acadia's Earthcache Tour is Somes Sound.
W 68° 18.364’
Somes Sound has been the subject of increasing debate over the years. As indicated on the above exhibit, Somes Sound was once considered a fjord. As research continues, evidence indicates that the sound is technically a fjard.A fjord is a long, narrow, glacially eroded valley filled by seawater. Fjords reach depths of hundreds of meters and have steep rocky cliffs near the ocean. Characterized as a glacially carved embayment drowned by the sea, a fjard is smaller in many respects to a fjord. At 300 meters from the depths of the water to the tops of the mountains, Somes Sound is minor compared to fjords found in Norway, which reach more than 1,000 meters. Nearer to the mouth of Somes Sound and not far below the surface of the water lies a sill, a layer of igneous rock that is parallel to the existing bedrock. Unlike true fjords, the sill in Somes Sound is too small to interrupt the flow of water from the ocean into the sound.
Regardless of how it is classified, Somes Sound is a dramatic example of the raw power of glaciers.
N 44° 20.470’
W 68° _ _._45’
Coordinates
N 44° 19.110’W 68° 18.364’
Reading
Acadia’s glacial story begins with one of North America’s greatest examples of a glacier’s erosive power. Acting like a bulldozer, the glacier carved through the mountains before you, forming a deep valley.The distinctive contour of the U-shaped valley you see is commonly associated with glacial activity. As glaciers advance, they follow the path of least resistance. Because Somes Sound is bordered by fractured granite, it provided an easier path for glaciers to follow.Somes Sound has been the subject of increasing debate over the years. As indicated on the above exhibit, Somes Sound was once considered a fjord. As research continues, evidence indicates that the sound is technically a fjard.A fjord is a long, narrow, glacially eroded valley filled by seawater. Fjords reach depths of hundreds of meters and have steep rocky cliffs near the ocean. Characterized as a glacially carved embayment drowned by the sea, a fjard is smaller in many respects to a fjord. At 300 meters from the depths of the water to the tops of the mountains, Somes Sound is minor compared to fjords found in Norway, which reach more than 1,000 meters. Nearer to the mouth of Somes Sound and not far below the surface of the water lies a sill, a layer of igneous rock that is parallel to the existing bedrock. Unlike true fjords, the sill in Somes Sound is too small to interrupt the flow of water from the ocean into the sound.
Regardless of how it is classified, Somes Sound is a dramatic example of the raw power of glaciers.
Next Clue
According to the above exhibit, how deep is Somes Sound? To locate your next stop, place the missing numbers in the coordinates below.N 44° 20.470’
W 68° _ _._45’
Is there something we missed for this itinerary?
Itineraries across USA
Acadia
Arches National Park
Badlands
Big Bend
Biscayne
Black Canyon Of The Gunnison
Bryce Canyon
Canyonlands
Capitol Reef
Carlsbad Caverns
Channel Islands
Congaree
Crater Lake
Cuyahoga Valley
Death Valley
Dry Tortugas
Everglades
Gateway Arch
Glacier
Grand Canyon
Grand Teton
Great Basin
Great Smoky Mountains
Guadalupe Mountains
Haleakalā
Hawaiʻi Volcanoes
Hot Springs
Indiana Dunes
Isle Royale
Joshua Tree
Kenai Fjords
Kobuk Valley
Lassen Volcanic
Mammoth Cave
Mesa Verde
Mount Rainier
North Cascades
Olympic
Petrified Forest
Pinnacles
Rocky Mountain
Saguaro
Shenandoah
Theodore Roosevelt
Virgin Islands
Voyageurs
White Sands
Wind Cave
Yellowstone
Yosemite
Zion