Where on Earth? - July 2009

Enter this month's Where on Earth? contest! | Where on Earth? Archive

Christopher S. Schiappa

Clues for July 2009:

1. The feature consists of an approximately 6.5-hectare assortment of loosely packed sediments and rocks, ranging from about 10 centimeters to 7.5 meters in length.

2. This feature was left behind when the last major glaciers in this region retreated about 15,000 years ago.

3. The feature, located within a state park in the northeastern portion of the host state, is also a National Natural Landmark.

Name the feature and its location.

Scroll down for the answer

Answer: Left when the last major glaciers in Pennsylvania retreated about 15,000 years ago, Boulder Field in Hickory Run State Park holds 6.5 hectares worth of sediment and rocks between 10 centimeters and 7.5 meters in length. The Department of the Interior named it a National Natural Landmark. Photo by Christopher S. Schiappa.

July winners
H. Richard Blank (Spokane, Wash.)
Thom Davis (Campton, N.H.)
Lynette Goblinger (Ligonier, Pa.)
Charles Hutchinson (Tucson, Ariz.)
Richard Ipri (West Point, N.Y.)
Pam Kreis (Danville, Pa.)
Linda Main (Hartsville, Tenn.)
Jim Rosen (Saskatoon, Saskatchewan)
Roland Rueber (Eureka, Calif.)
David Walters (Pocono Lake, Pa.)

To submit your photographs to our Where on Earth? contest, send them via e-mail to
earth@earthmagazine.org.