1. Map of Rocky Mountain National (Estes) Park, Denver Mountain parks / Copyright by Union Pacific Creator: Union Pacific Railroad Company Published / Created: [1922] Call Number: 834 R59 1921 Container / Volume: BRBL_00589 Image Count: 1 Resource Type: Maps, Atlases & Globes Found in: Beinecke Rare Book and Manuscript Library > Map of Rocky Mountain National (Estes) Park, Denver Mountain parks / Copyright by Union Pacific System.