The 2000 Montana 500 was headquartered out of Great Falls.
Day one June 19th. Leg one of the run was 47 miles from Great Falls to Loma.
Leg two was 60 miles to Havre.
Leg three was 60 miles back to Loma.
Leg four was 47 miles to Great Falls.
Second Day June 20th: Leg five, 31 miles Great Falls to Choteau.
Leg 6, 55 miles Choteau to Valier.
Leg 7, 84 miles Valier to Great Falls.
Day 3, June 21st. 8th and last leg. 85 miles, Great Falls to Shelby. Total miles 469.
Day 4. Tour to Glacier Park, and Going to the sun highway.

Link to pictures

Tony's summary:

Directors for 2000