There's a co-ed version of boy scouts called Venturing for kids age 14/freshman+
http://venturecrew2473.wix.com/venturingcrew2473 My DD sounds like yours and I'll be encouraging her to try that when she's the right age. She does girl scouts now and they do some outdoorsy things but not as much as she would like. We try to put her in a lot of outdoors/adventure camps so at least she gets it in the summer and she's hoping to be a counselor at her favorite one when she's a teen. I also point out to her friends of ours who do outdoors jobs...
One is a professor who teaches conservation biology and has worked with conservation organizations in Africa. Her undergrad is in Wildlife Conservation and after that she served in the Peace Corps on wildlife protection projects which lead to further work and eventually a PhD in the conservation field. (right now DD wants to be her when she grows up)
Another works for the Nature Conservancy doing training, among other things, and spends a lot of time hiking in the parks as part of her job
Someone else works for the National Parks in a marketing role so it's not outdoors all the time but she does get to spend a lot of time visiting parks
I also show her articles I read about anyone doing an interesting outdoors/animal job. I'm still surprised at the wide range of jobs that you rarely hear about and try to help my kids get an idea of all the different things they could do.