On January 20th, the Billings Gazette featured an article about the BLM removing Russian Olive trees.
The trees were introduced as a fast-growing, hardy tree good for creating shelter belts, habitat and food for wildlife. Russian Olive tree is indigenous to Europe and Asia.  It can quickly colonize in riparian areas and out compete native vegetation, interfere with natural plant succession and nutrient cycling. Read the full article about the Bureau of Land Managements efforts.