All of the material pictured below was collected within 200 yards of the Hell Canyon trailhead on Hwy 16 west of Custer, SD on June 25th and 26th of 2003.

Fortification Agate                                                     Close-up

Approximately 5#

Fortification Agate                                                     Fortification Agate

Approximately 7#                                                      Approximately 20#

Orange Calcite, Note Conical growth habit.