Rio Colorado Geologic 1858 Map Frame:Black or Lake Trout

or Lake Trout

or Humphrey's Grasshopper

A reproduction print of the Crotalus Pyrrhus

Originally published in the 1884 edition of the "The Fisheries and Fishery Industries of the United States"

Explore the diverse and beautiful terrain of Pennsylvania and all of its distinctive character revealed within the detail of this relief map

Rio Colorado Geologic 1858 Map Frame:Black or Lake TroutThis beautiful map was the result of an exploration under the direction of the Office of Explorations and Surveys headed by 1st. Lieut. Joseph C. Ives in 1858. The map was drawn by Frhr. F. W. v. Egloffstein, the topographer to the expedition, who used a unique engraving process that resulted in the stunning rendering of the topographic features.