The Royal Proclamation of 1763 was issued by King George III to establish the basis of government administration in the north American territories formally ceded by France to Britain in the Treaty of Paris 1763 following the Sever Years War.
Royal Proclamation of 1763...established British administration over the colonies and set a "proclamation line" (between the red and pink areas above)..all areas west of the red region were to be reserved for the Indians. Colonist who thought they had fought the French and Indian War for the interior portion of American land were angered by this.
Even after Britain issued the Royal Proclamation of 1763, Daniel Boone continued to settle areas west of the Appalachian Mountains. This 1851 painting, Daniel Boone Leading Settlers through the Cumberland Gap, depicts the popular image of a confident Boone leading the early pioneers fearlessly into the West.
... King George III's Proclamation of 1763 set the boundaries between the English colonies and Indian territory, the new United States looked to expand well beyond these lines. Description from ushistory.org. I searched for this on bing.com/images
The Royal Proclamation of 1763 was issued October 7, 1763, by King George III following Great Britain's acquisition of French territory in North America after the end of the French and Indian War/Seven Years' War, which forbade all settlement past a line drawn along the Appalachian Mountains.