I applied online. The process took 3 weeks. I interviewed at US Forest Service (Fort Collins, CO) in Apr 2016
Interview
Went over what the forest service does, what the internship is, what areas you will specifically be focusing on as far as press releases and internal distributions. Even if you don't have much experience working with natural resources, it's not requirement.
Interview questions [1]
Question 1
How do you handle people unhappy with the way the forest service operates?