Five Roads to the Pacific Author:Neta Lohnes Frazier Discovery of the 5 routes to the Pacific from 1793 to 1812:
The First Road- Alexander Mackenzie, 1793
The Second Road- Lewis and Clark, 1805-1806
The Third Road- Simon Frazier, 1808
The Fourth Road- David Thompsoon, 1810-1811
The Fifth Road- The Astorians, 1811-1812
With maps and pictures.....