First lady Michelle Obama continued her visits to government agencies, Monday, stopping at the Department of the Interior to thank workers for their "service to this nation."

"The issues that you're working on, as you know, affect us all," she said. "And as public servants and stewards of some of America's greatest assets... you're charged with the sacred task of ensuring that America's resources are used responsibly and protected for future generations."

Click play to watch some of Mrs. Obama's comments at the Department of the Interior.

Mrs. Obama added that their work is at the center of the administration's highest priorities in securing the nation's energy future and protecting the environment.

"These aren't only vital for the survival of our planet as we work to combat climate change, but also incredibly important to strengthen our economy and the well-being of our families," she said.

The first lady was greeted by a performance from the Black Bear Singers, a Native American group, and was presented with a Native American shawl.

In response, she made clear that President Obama was serious about keeping a unique relationship between tribes and the federal government.

She announced that Obama would appoint an adviser to work with them to address issues like sovereignty, health care and education.

Monday's tour was the third of several planned visits to federal offices in Washington, D.C.

Mrs. Obama said the visits are to thank workers and make the first step in a lasting relationship between them and the current administration.