The Best September Events in Mammoth Lakes

Snow and sunshine bring people to Mammoth Lakes for outdoor fun, but there isn’t a more beautiful time in town than fall, and it’s almost here!

We’ve made a list of the best September events in Mammoth Lakes to make the most of the last warm weather of the year and to help the time pass before the leaves start to change! Check it out below, and then visit ASO Mammoth for the best outdoor gear and rentals in Mammoth Lakes!

Mammoth Gran Fondo 9/10

If you love cycling in beautiful places, then the Mammoth Gran Fondo is one of the best bike rides in the entire country, and it’s taking place in Mammoth Lakes’ backyard.

The Gran Fondo closes 75 miles of mountain roads so cyclists can ride through the mountains in peace and focus completely on their performance. Although, it’s hard to pay attention when riding with the Eastern Sierra mountains over your shoulders. There is a 102, 72, and 42 mile route so you can find the distance that’s perfect for you!

Mammoth Trail Fest 9/22-9/25

If you’re not a trail runner then running up Mammoth’s steep trails at elevation may seem impossible, but there isn’t a better place or community to get into trail running than Mammoth Trail Fest.

Whether you’re just starting out or are an experienced trail runner, Mammoth Trail Fest has three days of races of varying difficulty so that anyone can find the right race for them. If you’re not a runner, then there are still nightly events to enjoy! 

Mammoth Trail Days

The Town of Mammoth Lakes is holding events to clean up the trails surrounding Mammoth Lakes before the snow falls!

We constantly talk about how important it is to Leave No Trace while outside, and this is a chance to go even further by taking care of the trails we all love and know.

Mammoth Tuff 9/17

We have a biking event and a trail running event, why shouldn’t we have a trail biking event?

Mammoth Tuff is a race running through the trails in between Mammoth’s beautiful mountains that combines endurance and adventure into one event. Click above to see more information on registration and course info!

Crowley Lake Trail Run 9/25

Lastly, we have another race perfect for anyone looking for a challenging adventure before the weather turns cold.

The Crowley Lake Trail Run is ideal for anyone who wants to see some beautiful mountains, run against great competition, and enjoy an incredible community!