Assertion: national park's acre | /r/HasProperty | 3,200 km2
Facets:
Source sentences:
text: In 1895 Chief White Calf of the Blackfeet authorized the sale of the mountain area, some 800,000 acres (3,200 km2), to the U.S. government for $1.5 million, with the understanding that they would maintain usage rights to the land for hunting as long as the ceded stripe will be public land of the United States.