Race Map
This is the course map for the 14th Annual Rock CF Rivers Half Marathon and 5K Run/Walk.
NOTE IMPORTANT CHANGE FOR 2025! The Start/Finish for the Half Marathon will be at the Grosse Ile HIGH School. Not the Grosse Ile Middle School. The 5K Start will still take place at the Grosse Ile Airport and now finish at the Grosse Ile High School, as well.
