 During 1849, 1852 and 1854, Black Beaver guided Randolph B. Marcy's exploration expeditions throughout Texas.In his 1859 guide book "The Prairie Traveler," Marcy wrote that Black Beaver
had visited nearly every point of interest within the limits of our unsettled territory.He had set his traps and spread his blanket upon the head waters of the Missouri and Columbia; and his wanderings had led him south to the Colorado and Gila, and thence to the shores of the Pacific in Southern California.