Quick Scoop
I could only verify a **partial** timeline for Prince Charles on July 7, 1977: he was in Alberta for a brief visit tied to the centennial of Treaty 7, and later that day he appeared at a Calgary Stampede-related Indigenous ceremony and joked around at the Stampede.

Chronological order

  1. Arrived in Alberta for the brief visit. The available chronology says July 1977 was a short stop in Alberta to mark the Treaty 7 centennial.
  1. Took part in an Indigenous ceremony commemorating Treaty 7. A CBC item dated July 8, 1977 says he “speaks from the heart” at that ceremony.
  1. Appeared at the Calgary Stampede. The same CBC item notes he also “jokes around” at the Stampede.

What is missing

The sources I found do not give a full hour-by-hour itinerary for July 7, 1977, so a precise all-day chronology is not fully available from these records.

Source note

The clearest dated source I found is a CBC report published on July 8, 1977, which confirms the Alberta ceremony and Stampede appearance.

TL;DR: On July 7, 1977, Prince Charles was in Alberta, participated in a Treaty 7 commemorative ceremony, and also visited the Calgary Stampede.