Georgetown to Idaho

Georgetown to Idaho Springs Half Marathon

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Date
August 8, 2026
Starting Time

7:00 AM

Course

Road

Fees

$85-$125

Location

Georgetown

Participants

500-1000

Terrain

Challenging

Environment

Mountain Views

Temperature
High: 86°
/ Low: 72°
Overview

The Georgetown to Idaho Springs Half Marathon is a Colorado Runner’s Must-Do. This iconic Half Marathon is one of the most pleasurable races in the western US. The point-to-point course is a scenic and gently rolling downhill mountain course that winds down the Clear Creek Valley — starting at an elevation of 8,500ft. at Georgetown Lake and ending at an elevation of 7,500ft. in Colorado’s historic mining town, Idaho Springs. Registration includes Finisher’s Medal, Professional Race Timing, T-Shirt designed by a student, Post-race Party in Idaho Springs with Unique, Custom-made Awards. This event is hosted by the Clear Creek Booster Club, and it is planned by parent volunteers. Proceeds from the GTIS Half Marathon go directly to supporting middle school and high school students in Clear Creek County.

Course Description

The GTIS Half is a Colorado Runner’s “Must-Do!” Enjoy a breathtaking view along Clear Creek as you traverse a scenic and gently rolling mountain course that winds down the Clear Creek Valley starting at Georgetown Lake, and ends in the Colorado Historic Mining Town of Idaho Springs. About 25% of the course is gravel or dirt, the rest is pavement and cement. Also, the majority of the course is exposed to sun.


Repeat participants might wonder why the course has changed in recent years. The course had to be altered because both Idaho Springs and Georgetown have had significant development over the last few years, including the sale of the former football fields (where the post-event festival was held). This has required applicable municipalities and the event to rework a course that meets all municipalities’ requirements for safety.  This new course now takes you around Georgetown Lake and by Bridal Falls, one of the most iconic areas of Idaho Springs.

VIEWING AREAS: 

  1. There are a number of viewing areas along the course.  The start will let you see your runner or walker get off and then they come back at the end of the second mile to the starting area.  This allows you see the participants at least twice.

  2. At exit 232 Highway 40 and Empire there is a large area to park on the north side of the frontage road and this is an easy exit to get on and off so you can get to the finish.

  3. Exit 233 Downieville Lawson is a good exit if you take the road back west and meet the runners before they enter the dirt path for open space or as they exit the path by the Animal Shelter.

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