From Madera Canyon Road, at the bend where the dirt road goes east off the pavement as Box Canyon Road towards Route 83 and also the Florida Work Center, reset your trip odometer before leaving the pavement. At exactly 6.7 miles along Box Canyon Road headed east towards Route 83, I leaned an agave stalk against one of the small yellow marker signs on the downslope side of the road (south edge of the road). A FIVE-STRIPED SPARROW was singing it's head off on the north facing slope (across the canyon to the south) right before sunset. For those that know the spot, this is two curves below (west) of the waterfall spot. By my late night reckoning, with a weary eye, this appears to be in Pima County.