• American Association of Petroleum Geologists
  • Division of Professional Affairs
• American Geological Institute
• American Institute of Professional Geologists
• Association of American State Geologists
• Association of Engineering and Environmental Geologists
• Association of Women Geoscientists
• Geological Society of America
  • North–Central Section
• Missouri Department of Natural Resources
  • Division of Geology and Land Survey
  • Division of State Parks
• Missouri Department of Transportation
• National Association of Geoscience Teachers
• National Association of State Boards of Geology (ASBOG)
• National Park Service
• U.S. Geological Survey
  • Finding and Ordering USGS Topo Maps
  • National Geologic Map Database
• Bob Beste's "Location Guide for Rockhounds in the United States, 3rd. ed.":
  • Part I--Alabama through Idaho (PDF, 155 p.)
  • Part II--Illinois  through North Dakota (PDF, 186 p.)
  • Part III--Ohio through Wyoming (PDF, 193 p.)
• Jo Schaper's "Geology of Missouri"
• Jo Schaper's "Caves, Springs, and Karst"
• Jo Schaper's "Missouri Public Lands and Government Links"

Universities Offering 4-year Degrees in Geology

• University of Missouri–Columbia
• University of Missouri–Kansas City
• Missouri University of Science & Technology
• Missouri State University
• University of Central Missouri
• Northwest Missouri State University
• St. Louis University
• Washington University
  

Institutions Offering
Introductory Geology Courses

• Columbia College
• Maryville University
• Metropolitan Community College (KC Area)
  • Blue River, Longview, Maple Woods
• Missouri Southern State University
• Missouri Western State University
• Ozarks Technical Community College
• St. Louis Community College
  • Florissant Valley, Forest Park, Meramec
• Southeast Missouri State University
• State Fair Community College
• Truman University
• University of Missouri--St. Louis
• Westminster College