1. Baldwin's map of mining claims near Leadville, California Mining District, Lake Co. Colorado. Creator: Baldwin and Company Published / Created: [1879?] Call Number: 834gfc L46 1879 Container / Volume: BRBL_00590 Image Count: 1 Resource Type: Maps, Atlases & Globes Found in: Beinecke Rare Book and Manuscript Library > Baldwin's map of mining claims near Leadville, California Mining District, Lake Co. Colorado.