Section 8307 - Designation of the West Branch Susquehanna River Byway in Clearfield County, a portion of U.S. 219, U.S. 322, State Route 969, State Route 879, State Route 153, State Route 453, State Route 1001, State Route 729, State Route 4005, the Greenville Pike and Bilger's Rocks Road in Clearfield County, a total of 64 miles, as a scenic byway(a) General rule.--Because of its outstanding scenic, historic, recreational, cultural and archeological characteristics, the following is designated as a scenic byway:(1) U.S. 219 in Bell Township and continuing on U.S. 219 in Mahaffey Borough and Greenwood Township, Segment No. 270/450 , Lumber City Highway to State Route 969, Lumber City Highway, Segment No. 10/220 , State Route 453 in Greenwood Township to Penn Township to Lumber City Borough to Pike Township to Curwensville Borough to State Route 453, Segment No. 410/420 , State Route 879, Curwensville Borough, to State Route 879 to Segment No. 120/250 , State Route 1001, Curwensville Borough to Pike Township to Lawrence Township to State Route 1001, Segment No. 80/90 , State Route 153, Lawrence Township to Clearfield Borough to State Route 153, Segment No. 370/400 , U.S. 322, Clearfield Borough, to U.S. 322, Segment No. 440/414 , State Route 1001, Clearfield Borough to Lawrence Township to State Route 1001, Segment No. 112/160 , State Route 879, Lawrence Township, to State Route 879, Segment No. 330/800 , Lawrence Township to Goshen Township to Girard Township to Convington Township to Karthaus Township to county line.(2) Bigler's Rock Loop, State Route 729, Segment No. 420/490 , to U.S. 219, Lumber City Borough to Penn Township to Grampian Borough to U.S. 219, Segment No. 540/600 , to Bilger's Rocks Road T-203, Grampian Borough to Bloom Township and Bilger's Rocks Road T-203 to State Route 4005, Bloom Township to Pike Township to State Route 4005, Segment No. 040/010 , to State Route 879, Pike Township and State Route 879, Segment No. 90/120 , to State Route 453, Pike Township to Curwensville Borough.(3) Penfield Loop, U.S. 322, Segment No. 414/301 , to State Route 153, Clearfield Borough to Lawrence Township to Pine Township to State Route 153, Segment No. 410/470 , to Interstate 80 to Pine Township.(a.1) Exception.--Segment No. 290/360 of State Route 879 shall not be included as a part of the scenic byway designated under subsection (a) .(b) Effect of designation.-- No outdoor advertising device, as defined in section 3 of the act of December 15, 1971 (P.L.596, No.160), known as the Outdoor Advertising Control Act of 1971, may be erected if the sign is visible from the main-traveled way of the scenic byway and the purpose of the sign is that its message be read from the main-traveled way of the scenic byway, except: (1) the official signs and notices which are required or authorized by law and which conform to the national standards promulgated by the United States Secretary of Transportation pursuant to 23 U.S.C. § 131 (relating to control of outdoor advertising);(2) outdoor advertising devices advertising the sale or lease of the real property upon which they are located;(3) outdoor advertising devices advertising activities conducted on the property on which they are located, including devices which display a message that may be changed at reasonable intervals by electronic process or remote control; and(4) directional signs, including, but not limited to, signs pertaining to natural wonders, scenic and historical attractions and other points of interest to the traveling public which conform to the national standards promulgated by the United States Secretary of Transportation pursuant to 23 U.S.C. § 131.2011, July 7, P.L. 281, No. 63, § 1, imd. effective.