SOMO Winter Trail Series

DEC

2025

Enjoy a scenic trail challenge in South Mountain Reservation with looped 5K, 10K or 13.1M options over fire roads, single track and rolling hills. Aid stations are spaced about every three miles and participants receive a giveaway.

Sat 13 Dec 2025

South Orange, New Jersey

Website Registration

13 miles 10 kilometers 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

NJ Trail Series SOMO Winter 2 : December 13, 2025

The event takes place in South Orange, New Jersey at 12 Bear Lane, within South Mountain Reservation. It offers the following distances on a looped course:

5K (one loop)
10K (two loops)
13.1M (four loops)

The course uses existing fire roads, single-track trail, hills, and some pavement. Aid stations are available at intervals of approximately every 3 miles. There are no finishing medals; a giveaway will be provided.

Registration and fees

Registration is open until December 10, 2025. Prices start at 5K $30, 10K $35, and 13.1M $40, and increase by $5 as the race date approaches. Day-of registration fees are 5K $45, 10K $50, and 13.1M $55. Day-of payments are accepted by cash, check, Venmo, Zelle, or PayPal. Race day registration will be available on site. Visit the organization's website for the most recent information.