Events for October 31, 2026

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Backcountry Wilderness Half Marathon

Rocky Heights Middle School 11033 Monarch Blvd, Lone Tree

The 18th Annual Backcountry Wilderness Half Marathon returns to Highlands Ranch on Saturday, October 31, 2026, at 9:00 a.m. This 13.1-mile race winds through the Douglas County East/West Trail and...

$70 – $85

Last Stop – Halloween Event

Highlands Ranch Mansion 9950 E Gateway Dr., Highlands Ranch

What are you doing after trick-or-treating this year? End your Halloween night at the Mansion and Historic Park. Ghouls and goblins of all ages are invited. This is a free...

Free

1931 Film “Frankenstein” with Music by Michael Shapiro

Lone Tree Arts Center 10075 Commons Street, Lone Tree

This 1931 masterpiece of horror was originally released without a musical score, which inspired composer Michael Shapiro to fill in the void by creating an original new soundtrack. As the...

$35 – $50