Island Crossing  Neighborhood Homes in Arlington WA Find homes for sale in Island Crossing  Neighborhood in Arlington WA.  Island Crossing is a neighborhood in Arlington, Washington, United States. The Island Crossing triangle is owned by the Stillaguamish Tribe of Indians. “Many centuries ago, long before the area was settled, long before forests and grasslands were replaced with asphalt, our ancestors celebrated the journey of life and lived from the resources this land provides. As their children played and learned about nature, the adults would hunt, fish, and hand craft items for daily survival. Festively, they would periodically gather to celebrate and give thanks for all they had. We--their descendents--the Stillaguamish people reverently celebrate the rich culture and history th... 04/30/2014