Expanded Historic Highway 11 Treasure Trails launches in October Wed, 09/26/2018 - 5:00am Pittsburg is joining a Northeast Texas tradition. The Historic Highway 11 Treasure Trails is expanding westward and is now a three-day,PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about Expanded Historic Highway 11 Treasure Trails launches in October