 North from Long Valley Junction , US @-@ 89 descends through the valley of the Sevier River , meeting SR @-@ 12 , a scenic highway that leads to Bryce Canyon National Park , at Bryce Canyon Junction , SR @-@ 143 in Panguitch , and SR @-@ 20 at Bear Valley Junction . As the highway continues north , the valley narrows significantly into the Circleville Canyon before opening out near the town of Circleville . In this part of the valley , the Sevier River is dammed to create the Piute Reservoir , and US @-@ 89 meets SR @-@ 62 near Kingston . North of Marysvale , the valley again narrows into the Sevier Canyon , which carries the river to its confluence with Clear Creek and US @-@ 89 to its overlap with Interstate 70 , beginning at Sevier . 
