What are the names of 5 indigenous nations that signed Treaty 7?

There were five distinct Indigenous nations that signed Treaty 7 in 1877:  

1. Siksika Nation (often referred to as the Blackfoot)  
   
2. Kainai Nation (often referred to as the Blood)  
   
3. Piikani Nation (often referred to as the Peigan)  
   
4. Stoney-Nakoda Nation (comprising the Bearspaw, Chiniki, and Wesley First Nations)  
   
5. Tsuut'ina Nation (often referred to as the Sarcee)  
   

These nations met with representatives of the Crown at Blackfoot Crossing in what is now southern Alberta to sign the treaty.