The Sacred Buffalo Vision by Robert J. Juneau and Robert C. Juneau pg.71

Public demand generated by James J. Hill and Montana High Society led to the opening of the Blackfeet “mineral strip” discovered by Chief Clerk E.C. Garrett, James Willard Schultz and reservation squaw men that caused the demise of the Indian’s successful cattle industry. United States Treaty Commissioner George Bird Grinnell talked the Indians out of their initial asking price for the mineral strip from $3,000,000 down to $1,500,000 and ceding more land that the Indians wanted in saving the timber and grazing lands for their tribal cattle industry.

Grinnell and J. W. Schultz had guided rich sportsmen to shoot trophy mountain goats and fish the lakes and streams of the western reservation mountain lands which Grinnell wrote about in his magazine of outdoor adventures and Schultz’s Blackfoot War Party stories gave them the genuine sportsmen and frontiersmen images they cultivated among the Easterners, who would later become Glacier National Park tourists after gold, copper and silver were not discovered in paying quantities. The Indians treaty money would be stolen by 1904 and their successful cattle industry usurped by whites.  

In the 1896 Agreement/Article Five, Congress reserved all of the Blackfeet Reservation grazing lands for the exclusive use of the Blackfeet cattle ranchers and exempted the Blackfeet Tribe from the 1887 Indian Allotment Act. By 1899 the Indian cattle ranchers had not recovered from the cattle trespass of white stockmen on their treaty reserved grazing lands and the on-going waste of tribal funds by the agency employees. The Indian agents and the agency ring wasted tribal land cession funds on bloated agency payrolls in employing an entourage of relatives and political cronies, purchasing useless annuity goods sent by Fort Benton contractors, costly and inefficient agency buildings and construction projects, and over $900,000 on the Blackfeet Irrigation Project that ultimately carried tribal waters to border-whites and border-towns.
-The Sacred Buffalo Vision by Robert J. Juneau and Robert C. Juneau  
pg.71