Describe the examples of imagery used at the end of this chapter?

At the end of chapter 7, Twain uses a lot of imagery. The ending of the chapter is extremely descriptive. "I rose up and there was Jackson's Island, about two mile and a half downstreem, heavily timbered and standing up out of the middle of the river, big and dark and solid, like a steamboat wihtout any lights." This is a quote from the end of chapter 7 when Huck finds Jackson's Island. As you can tell, this passage is very descriptive and uses lots of imagery.