16 January 2016: Exploring the Oriflamme Canyon Trail was the best way to spend the day. The Oriflamme Trail had elements of sand, mud, dirt, rock and both easy and moderately technical sections. Great views all day long. Here are the GPS coordinates we started at: 33.007467, -116.456492. Be on the lookout of the Mason Valley Truck Trail and you know you are in the right place. Go find your adventure! Oriflamme Canyon is a steep mountain canyon, in San Diego County, California that descends from its head in the Laguna Mountains,in an arc northwestward then northeastward to join Rodriquez Canyon at the northwest end of Mason Valley. This canyon was along the route of Native Americans across the mountains and desert between the Native American peoples of what is now mountain and coastal San Diego County, California and those on the Colorado River. It was later used by Spanish, Mexican and American travelers, including U. S. Army couriers and the San Antonio-San Diego Mail Line. The latter's passengers rode up and down the canyon on mules between Carrizo Creek Station and Lassitor's Ranch in Green Valley on the short route to San Diego.