Richard H. Berkey, 63, was charged with private indecency, a misdemeanor, by sheriff's deputies who were called to the Big Fan Campground near Bagby Hot Springs last weekend, according to Clackamas County Detective Jim Strovink.
Campers told deputies they recognized Berkey from a similar incident at the campground last year and wanted to make sure he didn't get away.
The 2006 incident was reported to police but did not result in charges.
"Last year, we took down his license plate number and turned it in to the sheriff, but there wasn't a lot they could do really," said Jason Dugan, one of the campers. "This year, that wasn't happening."
Dugan and another camper, Michelle Brandow, said several friends were playing chess, eating and relaxing last Saturday, when they heard rustling in an area the women used as an open latrine. Dugan went to investigate, saw a man running from the area and tackled him.
With help from two other campers, Dugan led Berkey to the group's campsite and tied him to a tree. Another camper left to call police.
Berkey told KGW-TV in
Berkey is scheduled to appear in court on Sept. 18.