National Park Service

Heartland Network (HTLN)

Parks in this Network

HTLN Network Map
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Network Map

Heartland Network

Land Cover Map for Hopewell Culture NHP Collared lizard at Ozark National Scenic Riverways Oak and hickory forest at Buffalo National River Tall thistle at Homestead National Monument of America Wild prairie flowers at George Washington Carver NM Red-winged blackbird at Herbert Hoover NHS Rare cave formation at Buffalo National River Hopewell Culture National Historic Park Split rail fence at Pea Ridge National Military Park Horned owl at Herbert Hoover NHS Fish sampling at Buffalo National River Cub Creek at Homestead National Monument Pulltite Spring at Ozark National Scenic Riverways Western prairie fringe orchid (Platanthera praeclara)

The Heartland Inventory & Monitoring Network (HTLN) is comprised of 15 national park units, that contain a rich and varied array of natural and cultural resources. Multiple ecosystems are represented across HTLN parks including rivers, lakes, springs, prairies, wetlands, and forests.

The Network is charged with creating inventories of its species and natural features as well as monitoring trends and issues. These parks and their partners are dedicated to understanding and preserving the region's unique resources through science and education.

This web site delivers information about these resources, the Network's Inventory & Monitoring Program, and the scientific activities underway. Learn more about specific topics by exploring the links on the left or visit the park units pages to discover the particular resources found at each of these special places.


Featured Information

Newsletter:
The Weather Vane: July-August, 2013

HTLN 2012 July & August Newsletter

Monitoring project updates, about the new Department of the Interior Bison Connect services (email, Google Drive, etc.: NPS-only)...
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Great Plains Fire Science Exchange

Great Plains Fire Science Exchange

Great Plains Fire Science Exchange is a knowledge exchange consortium developed to assist land managers and the fire community to make sound decisions based on the best possible information.
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Video:
Inventory and Monitoring Across the NPS

Report:
Aquatic invertebrate monitoring at Wilson's Creek National Battlefield: 1996-2010

Aquatic Invertebrate Report Cover

This report describes the aquatic invertebrate sampling study results for Wilson's Creek National Battlefield from 1996 to 2010. Aquatic invertebrates are an important tool for understanding and...
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Last Updated: June 09, 2014 Contact Webmaster