The Geography of the Salinas Valley
Steinbeck begins by describing the Salinas Valley, situated between two mountain ranges. To the east lie the Gabilan Mountains, which the narrator describes as light, inviting, and full of sunshine. To the west are the Santa Lucia Mountains, which appear dark, formidable, and somewhat threatening. This contrast immediately establishes a central theme of the novel: the duality of light and dark, or good and evil.