Indiana Master Naturalists
https://www.in.gov/dnr/parklake/6321.htm
ANROSP
https://anrosp.wildapricot.org/
NAI Region 4
http://nairegion4.weebly.com/
Book Pick (aff link):
Last Child in the Woods by Richard Louv
https://amzn.to/2LmdUxl