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National Capital Region Network (NCRN)

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amphibian and reptile inventory
Examining a salamander at Catoctin Mountain Park during the NCRN Amphibian and Reptile Inventory.

Natural resource inventories are extensive, point-in-time efforts to determine the location or condition of resources.

The primary purpose of these inventories is to assess and document the current condition and knowledge of natural resources in the parks, providing a solid baseline for long-term monitoring and management. Inventories allow comparison of existing conditions to the natural or desired state of parks.

NCRN Inventories

These inventories were intended to fill-in data gaps on species status and abundance for vertebrate and vascular plant species in the parks through targeted field investigations.

Inventory Parks Surveyed
Amphibians and Reptiles Inventory Report CATO, CHOH, GWMP, HAFE, MANA, MONO, ROCR, WOTR
Birds Inventory Report ANTI, CATO, HAFE, MANA, PRWI, WOTR
Fish Inventory Report ANTI, CHOH, GWMP, HAFE, MONO, WOTR
Grasses, Sedges, and Rushes Inventory Report CATO, CHOH, GWMP, HAFE, MANA, NACE, ROCR
Macrofungi Inventory Report ANTI, CATO, CHOH, PRWI
NCRN Paleontological Resources Inventory Report (NPS only) ANTI, CATO, CHOH, GWMP, HAFE, MANA, MONO, NACE, PRWI, ROCR, WOTR
Small Mammals Inventory Report ANTI, CATO, CHOH, GWMP, HAFE, NACE, ROCR
Vascular Plants Inventory Report ANTI, MONO, ROCR, WOTR

Basic Natural Resource Inventories

Twelve basic resource inventories are defined as part of the Natural Resources Inventory and Monitoring Guidelines (NPS-75). They are intended to provide park managers with the minimum information needed to effectively manage the natural resources of their park.

  1. Air Quality - focuses on indicator pollutants regulated under the Clean Air Act, including ozone, sulfur dioxide, particulate matter, visibility, mercury, and acid deposition. An NPS Air Quality Conditions & Trends Tool displays air quality data by park.
  2. Air Quality Related Values - provides information on the types and amounts of air pollutants that cause harmful changes to resources including: visibility, vegetation, soils, water, fish, and wildlife. Download a report on the Risk of Foliar Injury from Ozone on Vegetation in parks in the National Capital Region Network.
  3. Base Cartography - Provides geographic information systems (GIS) data layers at the IRMA online data portal.
  4. Climate - provides access to climate data on NPS lands. Access to climate data, especially in light of climate change, is fundamental to our understanding of the status of ecosystems and species and their response to climate variability. Download the full NCRN Weather and Climate Inventory report.
  5. Geologic Resources - provides digital geologic map data, and a park-specific geologic report. This inventory aims to raise awareness of geology and the role it plays in the environment. Full reports, data, and maps can be found at the NPS Geologic Resources Inventory Publications Page.
  6. Natural Resource Bibliography - The IRMA online data portal catalogs and manages natural resource-related information products related to national parks.
  7. Soils Resources - Includes maps of the locations and extent of soils; data about physical, chemical, and biological properties of those soils; and information about use issues for each kind of soil. Data and reports are at the NPS Soils Resource Management webpage.
  8. Species Lists - The core of the species lists inventory is NPSpecies, a web-based system that provides a way to build, manage, and share park species information. NPSpecies includes standardized information on species occurrence in parks, including scientific names and their synonyms, common names, abundance, residency, nativeness, and more. Park species lists through NPSpecies are available on the NCRN website.
  9. Vegetation (Map) Inventory - includes classifications, descriptions, and detailed maps of vegetation communities for each park. The NPS Vegetation Inventory Products page provides links to all final products.
  10. Baseline Water Quality - Baseline physical, chemical, and biological water quality data that was collected, documented, and summarized from existing, readily-available, digital water quality data collected in the vicinity of parks. Data is located at the on the NPS Baseline Water Quality Data Inventory & Analysis webpage.
  11. Water Body Location and Classification - A high-resolution (1:24,000, 1:63,360 in Alaska) National Hydrography Dataset for 8-digit hydrologic units/subbasins containing national park units. Data is located at the IRMA online data portal and via the National Hydrography Dataset.

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