What distances are available at Call of the Wild?

The listed distances are 5K, 5.5M, Half.

Call of the Wild 2026–2027: Date, Distances & Registration

Q: How do I register for Call of the Wild?

Use the official registration link. Enviro-Sports handles registration, payment, waivers, transfers, cancellations, and refunds.

Trail race guide

Call of the Wild: date, distances, elevation, and registration

Call of the Wild is a moderate trail race organized by Enviro-Sports. It offers 5K, 5.5M, Half distances on Saturday, April 17, 2027.

Date: Saturday, April 17, 2027
Location: Jack London State Historic Park · Glen Ellen
Distances: 5K · 5.5M · Half
Elevation gain: 5K gain not published · 5.5M 780′ · Half 1,854′
Difficulty: Moderate
Registration: Registration link below
Official source: Enviro-Sports · Verified Sep 25, 2026

Questions about Call of the Wild

When and where is Call of the Wild?

Call of the Wild is scheduled for Saturday, April 17, 2027 at Jack London State Historic Park · Glen Ellen.

How do I register for Call of the Wild?

Use the official registration button on this page. Registration, payment, waivers, transfers, cancellations, and refunds are handled by Enviro-Sports.

What distances are available?

Call of the Wild currently lists 5K, 5.5M, Half.

Can I invite a friend?

Yes—use the prefilled text or email invitation. It includes the race date, a suggested distance, and this guide.