Arizona Geological Society

Courtland-Gleeson Mining District

Cochise County, Arizona

April 25-26, 2025


Group Photo of Field Trip Participants at Ringo Deposit in the Courtland Sub-district

(photo by Evelyn Cox)



Field trip participants examining altered outcrop at Courtland (photo by Dan Laux)



Field trip participants examining altered outcrop at Courtland (photo by Dan Laux)



Ann Pattison, Nathan Carey and Zoey Carey examining core from Courtland Sub-district at Intrepid Metals core storage area (photo by Dan Laux)




Osterman Breccia from the Earp and Ringo Areas in the Courtland Sub-district

(photos by Evelyn Cox and Dave Maher)




Magnetite, chalcopyrite, and pyrite replacement textures in Marbilized Abrigo Formation

from Ringo Zone in Courtland Sub-district

(photos by Paul Warren, Dave Maher, and Nathan Carey)




Field trip participants examining the Gleeson Area

(photo by Dan Laux)



Field trip participants examining outcrops in the Gleeson Area

(photo by Dan Laux)



Field trip participants examining geological map of the Gleeson Area

(photo by Dan Laux)



Old mine dumps in the Gleeson area

(photo by Dan Laux)



Field Trip Group Photo at the Pemberthy Mine, Gleeson Sub-district

(photo by Dave Maher)




Special thanks to Intrepid Metals Corporation and Ivanhoe Electric, Inc. and our field trip leaders.

Left to right:  Representing Intrepid Metals:  Wanda Carter, Evelyn Cox, Matt Gray, Ken Brophy,and Ken Balleweg.  And Representing Ivanhoe Electric, Inc.:  Jarad Lavelle, Elizabeth Hollingsworth, Alex Neufeld,

and Guenevieve Bergin



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