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Glacier National Park Noxious Weed Blitz

Main Project Information
Presented By Glacier National Park
Goal Document and reduce populations of 5 noxious weeds
Task Document and pull noxious weeds along park trails
Where Glacier National Park, United States of America Montana

We invite Citizen Scientists to participate in our annual Glacier National Park Noxious Weed Blitz each year on the third Tuesday in July (check our web page to confirm date). Citizen Scientists are trained to identify five invasive plants and map their locations with GPS units. The Noxious Weed Blitz is an all-day event where volunteers attend a training presentation in the morning, and in the afternoon, volunteers separate into groups to search for and pull invasive plants along park trails. Species targeted by the program are Spotted Knapweed (Centaurea stoebe), Oxeye Daisy (Leucanthemum vulgare), Houndstongue, (Cynoglossum officinale), St. Johnswort (Hypericum perforatum) and Yellow Toadflax (Linaria vulgaris). The Noxious Weed Blitz provides valuable education to visitors and helps Glacier National Park reduce weed populations along park trails. Participants can use the knowledge they gain to educate friends and neighbors and identify and reduce weeds in their own yards.

How to Join

For information on how the event, contact the Crown of the Continent Research Learning Center at

Project Timing July (Typically event falls on 3rd Tuesday)
Materials List garden work gloves
Ideal Age Group Middle school (11 - 13 years), High school (14 - 17 years), College, Graduate students, Adults, Families, Seniors
Ideal Frequency Just once
Average Time Several hours
Spend the Time outdoors
Type of Activity On a hike
Media Mentions
and Publications
Tags bioblitz, blitz, glacier, glacier national park, glacier park, introduced species, invasive, invasive plants, invasives, invasive species, montana, national park, national parks, national park service, nonnative, non-native, noxious weeds, nps, park, parks, weeds
Project Updated 04/21/2017