Mormon History, summer of 1848

[Parley P. Pratt] In the , Pratt explored Big Kanyon Creek, now Parleys, for the purpose of building a road to provide easier access into the valley. summer of 1848

[source: Utah History Encyclopedia: Parley P. Pratt, http://www.uen.org/utah_history_encyclopedia/p/PRATT%2CPARLEY.html]