It's a well known hiking area on the island. It's been part of the Saratoga Woods public park since it was bought by the land conservancy in ~2001. It was note

It's a well known hiking area on the island. It's been part of the Saratoga Woods public park since it was bought by the land conservancy in ~2001. It was noted as abandoned at the time. The main part of the park is second growth, but the area around the airstrip looks to be mainly smaller trees, so possibly logged later, post early Seattle logging boom times.