"Personal Journeys with Lewis & Clark," sponsored by the Washington State Parks and Recreation Commission, returns this Sunday night to Horsethief Lake State Park.
The fifth program in the series of 13 presentations by Waitsburg resident Gary Lentz starts at 7 p.m. Price of admission is $5.
The series runs through Sept. 5.
This Sunday, Lentz, who portrays Sgt. Patrick Gass, a member of the Lewis & Clark Corps of Discovery, presents a new program titled "The Magic of William Clark."
As Gass, Lentz provides an overview of the various "tricks" the expedition's leaders used to impress indigenous populations they met along their path.
The program includes demonstrations of port fires, a ticking watch, magnets, burning glasses and mirrors, and a discussion about the air gun.
Later programs will cover the medicines, equipment and weapons the Corps of Discovery carried, the plants and animals it came across during its explorations for a Pacific Northwest Passage, and methods the personnel used to communicate with contacts when no common language existed.
Lentz has served on the governor's Lewis & Clark Trail Committee since 1982 and currently is vice president of the Washington State Chapter of the Lewis & Clark Trail Heritage Foundation.
With a background in zoology and natural history, Lentz has been manager of the Lewis & Clark Trail State Park since 1979. From time to time, he has worked with historians and authors as a consultant.
Lentz writes a column for the state L&C Trail Heritage Foundation's newsletter, titled "Kumtux Wawa," that answers questions about various aspects of the expedition.