Location: Mountain Ridge Middle School

Address: 10590 Mountain Vista Ridge 

               Highlands Ranch, CO 80126

Date: June 10, 2017

Type of Terrain: Dirt Trail, Single Track, Bike Path

Parking: Mountain Ridge Middle School Parking lot, directly next to Start/ Finish Line



​​Course Notes:

  • Out and Back Course for both Half and 10K 
  • 1 Aid Station for 10K
  • ​4 Aid Stations for Half
  • ​Rolling Hills Course
  • Non- Technical Course, great for all running levels
  • ​Trail shoes recommended , not required

​For more detailed course information, maps, testimonials, and course images please see designated course maps.

Packet Pick Up Location:

Runner's Roost Denver

1685 S. Colorado Blvd

Denver, CO 80222

FAQ's: Answers to FAQ'S for this event and other ERS events can be found HERE

Pre-Race Packet Pickup:

Friday June 9th


Race Day  Schedule:

5:30am-  Race Day Registration Opens

7:00am-  Expo Opens

7:30am-  Half Marathon Starts

8:00am-  10k Starts

9:00am-  Food Tent Opens

9:45am-  Kids Race Starts

10:15am-10k Awards

10:30am-Half Marathon Awards

11:30am-Expo Closes

Race Details

Race Schedule

 A runner favorite among Endurance Race Series front range events. These courses will keep the Heart Rate pumping while offering some of the best views in the front range.

The June 10th, East-West Trail Half Marathon and 10k event gets it name from the trail system it is located on... The beautiful and scenic East-West trail in Littleton, CO offers a 100% dirt trail and single track course for this event, while creating challenging yet manageable elevation gains.

This front range event will see more elevation gains than others the Endurance Race Series offers, but is still considered to be a great race for any level of runner. 

NEW IN 2017- Due to construction at our regular start location, the ERS has changed up the courses to now start and finish at Mountain Ridge Middle School (1.5 miles west of old staging location). The change in staging area allows for more parking, while providing an even more scenic course and added single track.

East-West Trail Half Marathon and 10K

Course Maps