National Park Service

Greater Yellowstone Network (GRYN)

Inventory & Monitoring at Grand Teton National Park and
John D. Rockefeller Jr. Memorial Parkway

Snake River  Grand Teton NP
Snake River at Grand Teton NP

Resource Briefs

Assessment Reports

Inventory Reports

Monitoring Reports

Protocol Documents

NPS LogoGrand Teton National Park
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NPS LogoGrand Teton National Park Home Page
GRYN park map
Grand Teton National Park is connected to the southern boundary of Yellowstone National Park by the John D. Rockefeller Jr. Memorial Parkway.Click for larger image.

Located in northwestern Wyoming, Grand Teton National Park and the John D. Rockefeller, Jr. Memorial Parkway have a combined area of 333,700 acres within the Greater Yellowstone Ecosystem. The elevation ranges from 6,400 feet on the sagebrush-dominated valley floor to 13,770 feet on the windswept granite summit of the Grand Teton. Geologists regard the Teton Range as one of Earth’s most impressive examples of fault-block mountains. Although the Tetons are the youngest mountains of the Rocky Mountain chain, they contain some of its oldest rocks, dating back about 2.8 million years.

The late conservationist and philanthropist John D. Rockefeller, Jr. made significant contributions to several national parks, including Grand Teton, Acadia, Great Smoky Mountains, and Virgin Islands. Today, the parkway provides a natural link between the Grand Teton and Yellowstone national parks and contains features characteristic of both areas. In the parkway, the Teton Range ramps down a gentle slope at its northern end, while rocks born of volcanic flows from Yellowstone line the Snake River and form outcrops scattered atop hills and ridges.

GRYN monitoring efforts in Grand Teton National Park and the John D. Rockefeller, Jr. Memorial Parkway focus on amphibians and wetlands, climate, land use, water resources, and whitebark pine. GRYN supports additional monitoring by park staff in sagebrush-steppe ecosystems, and helped develop and test a comprehensive, park-wide landbird monitoring approach from 2005 through 2008. Many additional research studies and resource management activities take place in the park - to learn more please visit the park links above the map to the right.

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Last Updated: September 14, 2017 Contact Webmaster