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Click Here for the 30K Course Description, 50K Course Description or 50-Mile Course Description

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30K Course Description

Note: All distances should be regarded as approximate.  We feel that in most instances, they are within a couple tenths of a mile, and will continue to verify distances and update course descriptions accordingly.
 

Field Limit: 100
Start Time: 8:30 AM
Cutoff: 5 1/2 hours (2:00 PM)
Awards: All finishers
1st Place - male and female
Glacial Pace Award (last finisher within cutoff)

No Crew – No Pacers – No Drop Bags

Start to Mt. Union Road Aid Station (Mile 5.0)

The 30K trail race will start near Pavilion #7 at the McDanel’s boat launch.  Run west a short distance (+/- 100 yards) and turn right onto the crushed limestone bike trail heading north.  Follow the crushed limestone bike trail north 0.7 mile to the parking area for the bike rental shop.  Proceed around the right (east) side of the parking area to the start of the asphalt paved bike trail.  Follow the bike trail 0.4 mile to where it crosses the blue-blazed North Country/Glacier Ridge Trail.  Turn left off of the pavement onto single-track trail.  After a few hundred yards, the trail crosses North Shore Drive (use caution).  From North Shore Drive, follow single-track 3.6 miles to Mt. Union Road and an unmanned fluids-only aid station (Mile 5.0).  Use caution when crossing Mt. Union Road.

Mt. Union Road to Rt. 528 Aid Station (Mile 9.3)

From Mt. Union Road, stay on single track around a small pond.  About 0.2 mile after Mt. Union Road, turn left onto white blazed connector trail.  Follow white trail uphill, across a flat ridge, and then downhill about 0.8 mile and turn left to re-join the blue GRT.  Continue on blue 1.9 miles to a trail junction and sign for “Rt. 528 Bridge”.  Go straight, toward the Rt. 528 bridge, on white-blazed trail.  Note: There are a few spots along this stretch where a missed step could provide a truly interactive experience with Lake Arthur!  After about 0.7 mile on the white trail, the course turns abruptly left and begins a climb away from the lake.  From the top of the climb, a flat, but very rocky section leads to a junction with the blue blazed GRT.  Turn right and follow the GRT about 0.7 mile to the Rt. 528 aid station. 

At the Rt. 528 Aid Station, 30K runners will turn around and head back toward the start/finish at McDanels.  About 0.7 mile after leaving the Rt. 528 Aid Station, you will reach an intersection.  The course you ran outbound comes in from your left.  You will take the right branch on the return leg.   At the bottom of the hill, you will intersect with the main course and turn right.  Now, trace your steps back to the finish at McDanel’s.  Congratulations!  You’ve just finished the GRT 30K Trail Race!

For the 30k Course Map click here.l


50K Course Description

Note: All distances should be regarded as approximate.  We feel that in most instances, they are within a couple tenths of a mile, and will continue to verify distances and update course descriptions accordingly.

Field Limit: 100
Start Time: 7:30 AM
Intermediate Cutoff: 4 Hrs. 30 Mins. (12:00 Noon) @ Jennings AS (mile 15.2)
Cutoff: 9 hours (4:30 PM)
Awards: All finishers
1st Place - male and female
Glacial Pace Award (last finisher within cutoff)

Crew – Permitted at Rt. 528 Aid Station and Jennings Aid Station
No Pacers – No Drop Bags

Start to Mt. Union Road Aid Station (Mile 4.7)

Start near Pavilion #7 at the McDanel’s boat launch area in Moraine State Park.  Run west to the start of the crushed limestone bike trail heading north.  Follow the crushed limestone bike trail north for 0.7 mile to the parking area for the bike rental shop.  Proceed around the right (east) side of the parking area to the start of the asphalt paved bike trail.  Follow the bike trail 0.4 mile to where it crosses the blue-blazed North Country/Glacier Ridge Trail.  Turn left off of the pavement onto single-track trail.  After a few hundred yards, the trail crosses North Shore Drive (use caution).  From North Shore Drive, follow single-track 3.6 miles to Mt. Union Road and an unmanned fluids-only aid station.  Use caution when crossing Mt. Union Road.

Mt. Union Road to Rt. 528 Aid Station (Mile 10.0)


From Mt. Union Road, stay on single track around a small pond.  About 0.2 mile after Mt. Union Road, turn left onto the white blazed connector trail.  Follow the white trail uphill, across a flat ridge, and then downhill about 0.8 mile and turn left to re-join the blue blazed GRT.  Continue on blue 1.9 miles to a trail junction and sign for “Rt. 528 Bridge”.  50K runners will go straight, toward the Rt. 528 bridge, on white-blazed trail.  Note: There are a few spots along this stretch where a missed step could provide a truly interactive experience with Lake Arthur!  After about 0.7 mile on the white trail, the course turns abruptly left and begins a climb away from the lake.  From the top of the climb, a flat, but very rocky section leads to a junction with the blue blazed GRT.  Turn right and follow the GRT about 0.7 mile to the Rt. 528 aid station.

Rt. 528 to Jennings Center Aid Station (Mile 15.2)

Use caution crossing Rt. 528 and continue on single-track (blue-blazed) trail.  At mile 14.0, turn right on the white-blazed Ridge Trail.  You are now in the Jennings Environmental Education Center.  Note: Runners leaving the trail within the Jennings Center (from mile 14.0 to 17.4) will be subject to disqualification.    From the right turn at mile 14.0, follow blue course markings as you wind through the Jennings center.  There are many intersecting trails in this part of the course, so pay attention to the course markings.  At about mile 14.9 you will pass in front of the park office, crossing Rt. 528 at mile 15.1.  Follow the access drive thru a gate and into a parking lot.  Pass thru the parking lot and follow a trail a short distance to a pavilion and the Jennings Center aid station (Mile 15.2).

Jennings Center Aid Station to Rt. 528 (Mile 21.3)

From the pavilion, turn right on the Massasauga Trail for 0.25 mile.  Turn left on the Deer Trail for 0.2 mile, then bear right on the Oakwoods Trail for 1.0 mile.  Turn right on the Hepatica Trail for 0.2 mile, then right on the GRT.  Once back on the blue-blazed GRT, trace your steps back to the Rt. 528 aid station, then back to the finish at the McDanel’s boat launch.  Congratulations!  You’ve just finished the GReaT 50K Ultramarathon!

For the 50k Course map click here.


50-Mile Course Description

Note: All distances should be regarded as approximate.  We feel that in most instances, they are within a couple tenths of a mile, and will continue to verify distances and update course descriptions accordingly.

Field Limit: 125
Start Time: 6:30 AM
Cutoff: 14 hours (8:30 PM)
Awards :All finishers
1st Place - male and female
Glacial Pace Award (last finisher within cutoff)

Crew – Permitted at Rt. 528, Jennings, and Swamp Run Aid Stations
Pacers – Permitted starting at Swamp Run inbound (Mile 32)
Drop Bags – Permitted at Rt. 528 Aid Station (50-milers will pass through three times)
Intermediate Cutoff – 8 hrs. 45 Minutes (3:15 PM) @ Swamp Run AS Inbound (Mile 32)
Second Intermediate Cutoff - 11 hr. (5:30 PM) @ Rt. 528 AS Inbound (Mile 40)
Drop bags must be clearly marked with runner number and name and checked in at
Pavilion #7 at the start/finish area no later than 6:00 AM Saturday.

Start to Mt. Union Road Aid Station (Mile 4.7)

Start near Pavilion #7 at the McDanel’s boat launch area in Moraine State Park.  Run west to the start of the crushed limestone bike trail heading north.  Follow the crushed limestone bike trail north for 0.7 mile to the parking area for the bike rental shop.  Proceed around the right (east) side of the parking area to the start of the asphalt paved bike trail.  Follow the bike trail 0.4 mile to where it crosses the blue-blazed North Country/Glacier Ridge Trail.  Turn left off of the pavement onto single-track trail.  After a few hundred yards, the trail crosses North Shore Drive (use caution).  From North Shore Drive, follow single-track 3.6 miles to Mt. Union Road and an unmanned fluids-only aid station.  Use caution when crossing Mt. Union Road.

Mt. Union Road to Rt. 528 Aid Station (Mile 10.0)

From Mt. Union Road, stay on single track around a small pond.  About 0.2 mile after Mt. Union Road, turn left onto the white blazed connector trail.  Follow the white trail uphill, across a flat ridge, and then downhill about 0.8 mile and turn left to re-join the blue GRT.  Continue on blue 1.9 miles to a trail junction and sign for “Rt. 528 Bridge”.  50M runners will go straight, toward the Rt. 528 bridge, on white-blazed trail.  Note: There are a few spots along this stretch where a missed step could provide a truly interactive experience with Lake Arthur!  After about 0.7 mile on the white trail, the course turns abruptly left and begins a climb away from the lake.  From the top of the climb, a flat, but very rocky section leads to a junction with the blue blazed GRT.  Turn right and follow the GRT about 0.7 mile to the Rt. 528 aid station.

Rt. 528 to Jennings Center Aid Station (Mile 15.2)


Use caution crossing Rt. 528 and continue on single-track (blue-blazed) trail.  About 200 yards after crossing Rt.528, there is afork in the trail.  Take the left fork.  At mile 14.0, turn right on the white-blazed Ridge Trail.  You are now in the Jennings Environmental Education Center.  Note: Runners leaving the trail system within the Jennings Center (from mile 14.0 to 17.4) will be subject to disqualification.  From the right turn at mile 14.0, follow blue course markings as you wind through the Jennings center.  There are many intersecting trails in this part of the course, so pay attention to the course markings.  At about mile 14.9 you will pass in front of the park office, crossing Rt. 528 at mile 15.1.  Follow the access drive thru a gate and into a parking lot.  Pass thru the parking lot and follow a trail a short distance to a pavilion and the Jennings Center aid station (Mile 15.2).

Jennings Center Aid Station to Rt. 528 (Mile 21.3)


From the pavilion, turn right onto the Massasauga Trail for 0.25 mile.  Turn left on the Deer Trail for 0.2 mile, then Bear right on the Oakwoods Trail for 1.0 mile.  Turn right on the Hepatica Trail for 0.2 mile, then right on the GRT.  Once back on the blue-blazed GRT, re-trace your steps back to the Rt. 528 aid station.

Rt. 528 Aid Station to Swamp Run Aid Station (Mile 29.5)

Cross Rt. 528 and onto the trail as you did heading for the Jennings Center.  After a couple hundred yards, bear right on a grassy trail and follow it about 0.5 mile to a small gravel parking area.  Turn left on a gravel road, run 0.2 mile, and turn right on Burton Road (gravel).  Follow Burton Road 1.3 miles to a gravel parking area on the left and a gate on the right.  Turn right around the gate onto a 4x4/fire road.  The remainder of this leg of the race will be on fire roads much as you see here (enjoy!).  Stay on the fire road almost 5 miles to a gate.  Go around a gate and bear slightly right to another gate. (Note: After going around the first gate, there is a road with a gate immediately to your right.  Do not take this road!)  About 0.25 mile after bearing slightly right and going around the gate, you will begin an abrupt descent for 0.75 mile.  At the bottom of the descent, you will emerge on a gravel road.  Turn left to the Swamp Run Aid Station.  After leaving the Rt. 528 aid station, the first four miles or so of this section are pancake flat, but don’t be lulled into a false sense of self-confidence.  Most runners will find this leg adequately challenging.

Swamp Run Aid Station to Turnaround (Mile 30.7)

Turn right (east) out of the aid station and follow the gravel road 200-300 yards and turn right on single-track.  Follow single-track, then double-track to a turnaround point.  The turnaround will be self-policed.  There will be a book hanging from a gas pipeline maker post.  Tear a page from the book and take it with you back to the Swamp Run aid station as proof that you reached the turn around point.  Trace your steps back to Swamp Run Aid Station (Mile 32), Rt. 528 Aid Station (Mile 40.2) and then to the finish at McDanel’s.  Congratulations!  You’ve just finished the GRT 50-Mile Ultramarathon!

Note: Runners who are expecting to be pushing the 14-hour race time limit (8:30 PM) will want to have a light in their drop bag at Rt. 528 for the final inbound leg to the finish.  In early April, visibility may be difficult that last few miles and no additional trail markings will be provided. 
For the 50 mile course map click here.
 

GLACIER RIDGE TRAIL
50 MILE & 50K ULTRAMARATHONS & 30K TRAIL RACE
GRT 50M, GRT 50K and GRT 30K: 

COURSE DESCRIPTIONS
links >>> [50-MILE] [50K] [30K] <<< links

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