|Map of the Acton Arboretum. The esker is located on the southwestern tip of the Blog Loop.|
Today I went to the Acton Arboretum, home of a special glacial feature: an esker! If you would like to learn more about how an esker forms, please check out this post.
|Looking up to the top of the esker.|
This esker is located on the southern tip of the Bog Loop Trail, one of the many paths in the arboretum. It was about 20 feet high and it runs north-south, which indicates that the glacier moved in that direction as well, since eskers typically run parallel to the direction of glacial flow.
The esker was made of well sorted sediment, which makes sense since all of the sediment would have been deposited by water. In fact, the stream that deposited all of the sediment to create this esker was one of the tributaries that fed glacial lake Sudbury many years ago.
|The view down one side of the esker.|
The Acton Arboretum is also renowned for its flowers, and when I visited, many were in full bloom.
Have a fantastic day!
Arboretum Map. Digital image. Acton Conservation Land. N.p., n.d. Web. 26 May 2013. <http://www.actontrails.org/images/mArboretum.jpg>.