Fireboat 721 is a small fireboat operated by the Bullhead City Fire Department, on the Colorado River. Bullhead City is on the Arizona side of the river, and the city received a Port Security Grant from the Department of Homeland Security to help acquire the boat.
- "Brush Fire along the Colorado River". The Colorado Bee. 2021-05-20. Archived from the original on 2021-05-22. https://web.archive.org/web/20210522024743/https://www.thebee.news/brush-fire-along-the-colorado-river/. Retrieved 2021-11-24. "Fireboat 721 was also added to the assignment to attack the fire from the river’s edge."
- "Firefighters battle brush fire along Colorado River". Mohave Daily News (Bullhead City, Arizona). 2021-05-21. https://mohavedailynews.com/news/131986/firefighters-battle-brush-fire-along-colorado-river/. Retrieved 2021-11-24. "Bullhead City Fire Department Battalion Chief Marvin McCabe assumed command and after a quick assessment, directed Brush Truck 716 and Fireboat 721 to the scene, attacking the blaze from the ground and the river."