Monroe Flume trail is very under the radar and likely only known by locals. Just at the start of Monroe FSR (off Brenda Mines Rd) there is the remnants of an old flume that parallels the road. Walking down the flume makes for an interesting walk through the hillside.
For the adventurer, it’s possible to follow the flume into Peachland Creek and bushwhack up to the headgates of the irrigation system.