Geology

"The BLM was established in 1946, but its roots go back to the years after America’s independence, when the young nation began acquiring additional lands. At first, these lands were used to encourage homesteading and westward migration. The General Land Office was created in 1812 to support this national goal. Over time, values and attitudes regarding public lands shifted, and President Harry S. Truman, by means of a government reorganization, merged the GLO and another agency, the U.S. Grazing Service, creating the BLM. "

"The Geological Society of America (GSA) is a global professional society with a membership of more than 20,000 individuals in more than 100 countries. GSA provides access to elements that are essential to the professional growth of earth scientists at all levels of expertise and from all sectors: academic, government, business, and industry. The Society unites thousands of earth scientists from every corner of the globe in a common purpose to study the mysteries of our planet (and beyond) and share scientific findings. GSA is supported, in part, by funds donated to and raised by the GSA Foundation."

"The Geological Society of Maine is a non-profit organization dedicated to geological issues and education in Maine. The Society’s membership includes teachers, students, working geologists, aspiring geologists, retired geologists and other interested persons."

University of Texas at Austin's Jackson School of Geosciences.

"The Maine Geological Survey provides the people and businesses of Maine with essential geologic information about the land where we live and work. Our experienced geologists collect and summarize information about groundwater, mineral resources, surface deposits and bedrock materials, stability of coastal properties, and natural hazards such as storms, floods, landslides, and earthquakes. We continually expand and improve this information, which is presented in thousands of free web pages, and thousands of maps and publications, available both as free digital downloads and in paper formats. Professional geologists in the private sector depend on this information to address issues of engineering safety, environmental impact, and natural resource development and protection. We also serve homeowners and landowners who want to understand their geologic surroundings to make decisions about the highest and best use of their property."

"The Maine Mineralogical & Geological Society is a nonprofit organization dedicated to all educational and cultural aspects of geology; mineralogy; lapidary arts and related subjects; and to the camaraderie generated by the membership's mutual interests."

Science.gov searches over 60 databases and over 2,200 scientific websites to provide users with access to more than 200 million pages of authoritative federal science information including research and development results.

Soil surveys by state from the United States Department of Agriculture.

"TOXMAP® is a Geographic Information System (GIS) that uses maps of the United States and Canada to help users visually explore data primarily from the EPA's Toxics Release Inventory (TRI) and Superfund Program, as well as some non-EPA datasets. TOXMAP helps users create nationwide, regional, or local area maps showing where TRI chemicals are released on-site into the air, water, and ground...."

OER course formerly from Lumen Learning.