Arlington Regional Master Naturalists

Restoring Healthy Ecosystems

Arlington Regional Master Naturalists are trained volunteers who work to restore and maintain healthy ecosystems in our fragmented public lands. These lands provide vital habitat for resident and migratory wildlife and offer people an opportunity to experience nature in an urban environment.

Dyke Marsh at sunset/Oliver Torres photo

ARMN was formed as a chapter of the Virginia Master Naturalists in 2008. Since then, members have worked with local park jurisdictions, other volunteer organizations, and members of the public to increase the quantity and quality of healthy, biodiverse, high-functioning ecosystems.

We work directly in the field to restore native habitat by removing invasive plants and cultivating natives. We provide education and outreach to the public and communicate to various audiences about habitat restoration, local wildlife, and related topics. We collect data to measure the health of our ecosystems and share results to contribute to scientific research.

We are an all-volunteer nonprofit organization dedicated to the vision of a healthy and vibrant system of natural lands.

Learn more about ARMN here.

Join ARMN!

Become a Virginia Master Naturalist by taking our 14-week Basic Training Course. We offer courses in the spring and fall. The application period for Fall ’23 is closed, but you can apply in the spring. Learn more about the program and how to apply here.

Capital Naturalist Alonso Abugattas leads a training field trip in October 2023. ARMN photo.

Volunteer With Us!

Get outside and help us clear choking invasive plants from natural areas of our parks. We have multiple events every week.

Volunteers after a stilltgrass removal blitz at Brandymore Castle. ARMN photo.


iNaturalist is an app and global database that helps users identify species, record their observations of nature, and contribute to research. ARMN members participate in an iNat project called ARMN Observations. Here are some of our latest entries.

From the ARMN Blog