Arrowhead Island for sale. Own an entire forested island on Echo Lake. The 5.2 acre island has approximately 2000 feet of gravel beach shoreline.Sun on the shore all day long.Ready to build with a 7 bedroom septic system installed. Mainland access is to east at state owned boat ramp. Truly unique opportunity for your home! Call Scott Hollinger 406-253-7268 or your real estate professional. Agent owned. Buyer should check which internet services are available.