Abstract: A litter box especially adapted for use by pet dogs and similar small animals which includes a tray having a shallow upstanding peripheral wall adapted to receive a newspaper or other material capable of absorbing moisture combined with an upstanding wall structure pivotally connected to one end edge of the tray with the upstanding wall structure including a screen bottom and an entrance area in one portion of a peripheral wall. One end of the wall structure is provided with supporting legs and the other end provided with a handle to enable the wall structure to be pivoted upwardly from a horizontal in-use position to a generally vertical position to provide access to the tray to replace the newspaper or other material.