first of all, i envy you. definitely a cool profession.
i'm not in the field but i am currently doing some hr consulting with some park districts and forest preserve districts in my current job.
i believe most state dnr's, county fp's etc. require their officers to have successfully graduated from the law enforcement academy. look into the when, where, how's, etc. also, a degree in law enforcement, forestry, conservation, etc. would work to your advantage.
also, look into the trends for the profession. the u.s. bureau of labor statistics prints an annual occupation outlook survey that provides demographics, expected market trends, etc. for various occupations. the bls is an excellent place to begin researching potential careers. http://stats.bls.gov/
also, contact your state dnr (or equivalent agency). your county park or forest preserve district may even be more accessible. ask to speak to the human resources department. if you can, try to set up a meeting to view the job description, hiring process, qualifications, educational requirements, etc.
another resource could be the career services department at the college where you take these courses.
good luck! "he who loves what he does will never work a day in his life."
whoops! just noticed you're from canada. find the provincial and canadian federal equivalents to the aforementioned agencies.