See also:

• Business: Mining and Drilling  (704)
• Shopping: Recreation: Science and Nature  (346)

This category in other languages:
	German  (41)

• Engineering Tectonics - Provides geotechnical engineering, construction services, drilling and environmental services.
• GeoConsult - Petrographic service that provides geologists with detailed descriptions of rocks mineralogy, texture and alteration to help evaluate ore potential.
• Other Worlds Educational Enterprises - Instructional aides for the earth science classroom, Science Olympiad, and home schools.