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- Ice Age Floods National Geologic Trail (7)
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Showing 24 results for erratics ...
Grand Teton National Park
Jenny Lake Plaza
- Type: Place
Dive deeper into the history of Grand Teton National Park. Interpretive signs introduce topics like the Greater Yellowstone Ecosystem, grizzly bear research, geologic forces and features, glaciers, and the Hayden Survey. A large bronze tactile relief map will help orient you in relation to where you are in the park. Different peaks, canyons, lakes, falls, and other park features are labeled throughout the map.
Yellowstone National Park
Lamar Valley - Evidence of Glaciers
- Type: Place
Pipestone National Monument
The Three Maidens
- Type: Place
A sacred site. Large granite boulders treated as guardians of the quarries for centuries. Offerings are often left here prior to quarrying. Please maintain a respectful distance.
Katahdin Woods and Waters National Monument
Barnard Mountain
- Type: Place
Discover the spectacular views of Mount Katahdin and Katahdin Lake from Barnard Mountain.
Katahdin Woods and Waters National Monument
Deasey Ponds
- Type: Place
Enjoy the view and sounds of the forest at a quiet scenic pond. Deasey Ponds offers opportunities to observe the flora and fauna of a wetland habitat.
Ice Age Floods National Geologic Trail
Ravalli County Historical Museum
- Type: Place
The Ravalli County Museum, located in Hamilton, Montana, houses many unique and rare historical collections from our Native American heritage and establishment of Montana’s first white settlement in the heart of Ravalli County. Around the grounds of the Ravalli County Museum you will also find several Ice Age erratics and exhibits about Glacial Lake Missoula.
Ice Age Floods National Geologic Trail
Tualatin Public Library
- Type: Place
A unique highlight of the Tualatin Public Library is its striking display of an articulated mastodon skeleton, which is mounted in front of an etched-glass image of a mastodon. Tualatin has been named as a partner on the Ice Age Floods National Geologic Trail. In partnership with the Tualatin Historical Society, the Library also currently displays several other Ice Age relics.
Ice Age Floods National Geologic Trail
Erratic Rock State Natural Site (Bellevue Erratic)
- Type: Place
This 90-ton rock was deposited during an Ice Age flood. It floated over 500 miles in an iceberg 12,000 to 17,000 years ago, by way of the Columbia River. When the ice melted, the rock was left behind. This is the largest glacial erratic found in the Willamette Valley. It is a type of rock not normally found in Oregon because it came from the Northern Rocky Mountains. Visitors at Erratic Rock can look out across the vast landscape and imagine the huge amount of water that fil
Ice Age Floods National Geologic Trail
Ephrata Erratic Fan
- Type: Place
The basalt and granite boulders now littering the Ephrata Fan were carried there by torrents of water that gushed out of a canyon called the Grand Coulee. Water and debris exploded from the mouth of the Lower Grand Coulee complex sending debris in a wide swath like pellets from the mouth of a shotgun. Velocity reduction at the coulee mouth and debris momentum carried large boulders a mile or more before they began to settle out of the slowing water stream.
Acadia National Park
Acadia Earthcache Course Stop Five: Champlain Mountain
- Type: Place
Stop five on the Acadia Geocache course.
Ice Age Floods National Geologic Trail
Ice Rafted Erratics
- Type: Place
Ice Age Floods National Geologic Trail
Tualatin Heritage Center
- Type: Place
Visit the Tualatin Heritage Center to see their impressive collection of ice rafted erratic boulders which were all found in the area.
- Type: Place
The trail up Candy Mountain is a moderate 3.6 mile (5.8 km) roundtrip hike that offers sweeping views of the Tri-Cities region and a walk through time. Signs along the trail explain the impact of the ice age floods on area geography. Hikers capture sweeping views from the summit, with Mount Adams, Rainier, and Stuart visible on clear days. This perch offers a bird’s-eye view of the Hanford Site. A nearby sign points out the various areas of the Hanford Site.
Mount Rainier National Park
Nisqually Vista Walking Tour: Well-traveled Rocks
- Type: Place
The locations of boulders throughout the Paradise valley illustrate the massive forces of mudflows.
Acadia National Park
Acadia Earthcache Course Stop Two: Bubble Rock
- Type: Place
Stop Two on the Acadia Geocache Tour.
Acadia National Park
Acadia Earthcache Course Stop Three: Jellybean Glacial Erratic
- Type: Place
The third stop of Acadia National Park's Geocache Course.
Denali National Park & Preserve
Polychrome Overlook
- Type: Place
Polychrome Overlook is a popular scenic view from the Denali Park Road. Far below the overlook is the Plains of Murie, which is crossed by numerous braided river channels and dotted with kettle ponds and glacial erratics. In the distance, the Polychrome Glaciers and numerous peaks of the Alaska Range add to the scenery.
- Type: Article
About the size of a Blue-Jay, Sharp-shinned Hawks are aerial acrobats and are the smallest of three North American agile hawks known as the accipiters (ah-sip-it-ers). Learn more about this amazing and oft misunderstood hawk.
Glacier Bay National Park & Preserve
Glacial Erratic - Forest Loop Trail
- Type: Place
Glacial erratics are found throughout Glacier Bay National Park. Massive glaciers once moved earth and stone here, depositing large boulders that we see today called erratics.
- Type: Article
ere you’ll find place-based educational resources relating to archeology. Discover more resources at the Teaching with Historic Places homepage.