• American Camp parade ground looking west

    San Juan Island

    National Historical Park Washington

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  • American and English Camps Visitor Centers Open Labor Day

    The American and English camps visitor centers will be open on the Labor Day holiday, September 1. Call 360-378-2240, ext. 2226 or 360-378-4409 for information.

  • English Camp Visitor Contact Station on Winter Schedule

    The English Camp visitor contact station in the Royal Marine Barracks is closed for the season, starting September 2. Grounds are open daily from dawn to 11 p.m.

  • American Camp Visitor Center on Winter Schedule

    The American Camp visitor center is open 8:30 a.m. to 5 p.m. daily from September 2 to June 6, 2015. Grounds remain open daily from dawn to 11 p.m. Telephone 360-378-2240, ext. 2227 or 2226 for information. More »

Inventory and Monitoring Program

kids on beach_compressed

As increasingly complex and challenging issues require a greater understanding of the status and trends of each park's natural resources as a basis for making decisions, working with other agencies, and communicating with the public to protect park natural systems and native species, the National Park Service is working to improve park management in several ways.

One is implementation of a standard program to inventory and monitor the natural resources and park ecosystems to better understand their dynamic nature and determine their status. The program will collect, organize, and make available resource data through inventories, monitoring, research, research learning centers, reports and publications and data management.

The North Coast and Cascades Network is composed of seven park units, which includes San Juan Island National Historical Park.

As the largest natural area on the island, San Juan Island NHP is subject to ever-increasing pressures from near-park development, increasing visitation and various kinds of recreational uses. Inventories are needed to determine if listed and sensitive plant and animal populations are present that might be impacted by these activities.

Another major concern is the spread and distribution of exotic plants and animals. Exotic plant invasions are encouraged by the burrowing activities of exotic European rabbits, and the elimination of ground-nesting birds is linked to the activities of feral cats and introduced red foxes. Inventories are needed to determine the distribution of exotic plants and animals as well as the spread of exotics so that preventative measures can be initiated.

Learn more:

Research Learning Network Link NPS Inventory and Monitoring Program

Did You Know?


Camas bulbs were so highly prized by Northwest Indians for their creamy potato/baked pear taste that groups sometimes fought over the best growing areas, and people traveled great distances to harvest the bulbs and prepare them into thin, dry cakes. To ensure future harvests, the Indians burned the prairie regularly.