The Taseko has its origins at Taylor Pass in the heart of an alpine area known as the South Chilcotin. Taylor Pass connects with Slim Creek, a major tributary of Gun Creek, which feeds the Bridge River via Carpenter Lake. From its source, it flows north then northwest before entering the south end of Upper Taseko Lake next to the Lord River, one of its major tributaries.
The Taseko has its roots at Taylor Pass in a high alpine region called the South Chilcotin. Taylor Pass links to Slim Creek, a significant tributary of Gun Creek, which supplies the Bridge River through Carpenter Lake. Starting from its source, it flows north then northwest before entering the southern end of Upper Taseko Lake adjacent to the Lord River, one of its major tributaries.