Snake-Columbia River Observations

by Robert Bergantino

image map with identical links as found elsewhere on this page

image map by Joseph Mussulman (modified)

According to Lewis's data, where was the Snake and Columbia confluence?

These pages funded in part by a National Park Service Challenge-Cost Share Program.

Mouth of the Snake Latitude at the Snake Local Time at the Mouth of the Snake Longitude and Declination Measuring Widths