Frequently Asked Questions

How do I find, download, or order topographic maps?

How many active volcanoes are there on Earth?

How would sea level change if glaciers melted?

What is a critical mineral?

How do I find the best place to drill for water on my property?

Do you have a question? Explore the breadth of our science and find the answer here!

About USGS

About USGS

Biology

Biology

Climate

Climate

Coasts

Coasts

Ecosystems

Ecosystems

Energy

Energy

Environmental Health

Environmental Health

Geology

Geology

Information Systems

Information Systems

Maps and Mapping

Maps and Mapping

Methods and Analysis

Methods and Analysis

Minerals

Minerals

Natural Hazards

Natural Hazards

Ocean

Ocean

Planetary Science

Planetary Science

Science Technology

Science Technology

Water

Water