Gretchen Hoffman
New Mexico Bureau of Geology, a division of New Mexico Tech
Senior Coal Geologist
801 Leroy Place
Socorro, NM 87801
575-835-5640
575-835-6333 fax
gretchen@gis.nmt.edu

Marion Wiggins
Vulcan Materials Company
875 Oxford Avenue
Hanover, PA 17325
717-637-7121 x498 work
336-413=2676 cell

Tom Newman
Chief Geologist
Holcim Inc.
1405 Parkwood Drive
Ft Collins, CO 80525-1934
Phone 970-215-6110
tom.newman@holcim.com

Vanessa Santos
Chief Geologist
Agapito Associates, Inc.
715 Horizon Drive, Suite 340
Grand Junction, CO 81506
706-360-0214
mail@vanessa.santos.name

Roger D. Sharpe
Director, Geotechnical and Mining Services
United States Gypsum Company
550 West Adams Street
Chicago, IL 60661-3676
312-436-3964 (Office)
847-471-6869 (Cell)
312-672-7730 (Fax)

rsharpe@usg.com

WEBMASTER
Adam Read
New Mexico Bureau of Geology & Mineral Resources, a division of New Mexico Tech
801 Leroy Place
Socorro, NM, 87801
webmaster@nmbg.nmt.edu