Established in 1968, the Audubon Center of the North Woods (ACNW) is a private, non-profit 501(c)3 residential environmental learning center (RELC) and green retreat & conference center on Grindstone Lake near Sandstone, MN – 90 miles north of Minneapolis/St. Paul. We offer a variety of outdoor and environmental education experiences for people of all ages – youth, families and adults – and are an ideal K12 school field trips and student travel destination. In addition to our on-site programs and camps, ACNW provides outreach programs throughout the region. Our 535 acre campus is a diverse mix of hardwoods, pine plantation, prairie, and wetland on the east shore of Grindstone Lake.
Accredited by the North Central Association of Schools and Colleges, ACNW serves as a field campus for various community colleges and Hamline University. We have over 40 years of environmental education experience and an incredible variety of programs and audiences.