In the first part of Hemingway's narrative, there is the setting of white hills and the brown valley with "no shade" and "no trees," which are separated by "two lines of rails in the sun." Later in the story, Jig stands and walks to the end of the station where she can see "fields of grain and trees" a river, and mountains. And, across the field of grain, under "the shadow of a cloud," she sees the river through the trees.
Perhaps, then, the story can be interpreted in the context of the dialogue running parallel to the descriptions of setting: In the beginning, the conversation is about the abortion, and Jig considers the abortion, "Then I'll do it. Because I don't care about me." But, as the conversation continues, she reconsiders, "And once they take it away, you never get it back." She tells the man, "...we could have everything." Like the fertile fields of grain with trees of life, Jig looks to the other side and sees the river, symbolic of life. But, the man carries their bags back "around the station to the other tracks" where the brown ground and white hills lie.