Montana Agate Fest
Jun 26th, 2026
At 2 p.m.

Where:
Rosebud-Treasure County Fair
513 N. 16th Avenue Forsyth, MT

Description:
Montana Agate Fest 2026. Located in Forsyth, Montana.

Forsyth is about mid-point of the infamous Yellowstone River, which holds the one-of-a-kind Montana Moss Agate.

Join in on a 3-day, fun-filled, family-friendly event that will be sure to make Montana History.

Adults $10 per day or $20 for the weekend.
Kids 12 and under are free.

Also check out other Festivals in Forsyth, kids' events, & activities in Forsyth.