• Organization: U.S. Environmental Protection Agency
• Updated: 2016-06-13

A cross-sectional design was used where 86 residents of East Liverpool, Ohio, 100 residents from Marietta, Ohio and 90 residents from Mount Vernon, Ohio were recruited and participated in the...

• Organization: Department of the Interior
• Updated: 2023-02-06T00:00:00Z

Denali National Park and Preserve (DENA), located in central Alaska, is home to iconic and dynamic landscapes surrounding the tallest mountain range in North America, the Alaska Range. DENA...

• xml
• xml

• Organization: Department of the Interior
• Updated: 2026-02-05T00:00:00Z

National Park Service unit points.

• xml
• zip
• zip

• Organization: Federal Geographic Data Committee
• Updated: 2019-09-30

National Park Service unit boundaries.

• zip

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set contains visible-wavelength (0.435-0.925 micron) spectra for 1341 main-belt asteroids observed during the second phase of the Small Main-belt Asteroid Spectroscopic Survey (SMASSII)...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set contains visible-wavelength (0.435-0.925 micron) spectra for 1341 main-belt asteroids observed during the second phase of the Small Main-belt Asteroid Spectroscopic Survey (SMASSII)...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set contains visible-wavelength (0.435-0.925 micron) spectra for 1341 main-belt asteroids observed during the second phase of the Small Main-belt Asteroid Spectroscopic Survey (SMASSII)...