What is the setting of Abel's Island by William Steig?

The setting of the book is a deserted island on a river. The island is full of plants and trees, including a cherry birch tree that is Abel's favorite. He climbs atop the tree and looks out onto the river. On the island, there is an abundance of food such as green chutes, fruit, nuts and seeds. The island provides the bark of trees for Abel to build things. It also has red clay for Abel to sculpt his statues. These life-size statues stand erect and are replicas of Amanda and his family. Abel lives in a hollowed out log. It is rotting in some parts, but it is a safe home, especially against predators. Abel blocks off the openings of the log with rocks.