The Virgin River runs through the far northwest corner of Arizona on its way to Lake Mead from the Zion National Park in Utah. The Virgin River is a major tributary of the Lower Colorado River. The river is home to the protected Virgin River Chub. The stretch that runs through Arizona is not know for having great fishing although not much is documented about it. Many from Arizona don't know about, it other than the people of Littlefield, the town it crosses off Hwy 15. Where the Virgin River starts in Utah at Zion National Park has great trout fishing.