36033 S. Mt Lemmon Rd, Oracle, Arizona, Pinal County, United States

Start Date

10/29/2021

Activities: Gravel grinder, Bike ride 🚴🏿‍♂️, Bike race 🚴🏿‍♂️, Trail race, 50 Miles, 40 Miles, 13 Miles, 5 Miles, 10 Miles

The Mt Lemmon Gravel Grinder is a family-friendly off-road/mixed terrain cycling event that offers something for everyone. Hosted annually on the last weekend in October, The Historic 3C Ranch, set in the natural beauty of Oracle Arizona, is where we call home. This event includes a 40, 50, and 60-mile Gravel Grinder, 13-mile Adventure Fun Ride, and a FREE Kids Race/Ride for ages 12 and under.  This year, on Friday evening, we will host our annual Dirt Klunker Crit and Halloween Costume Contest. Participants, volunteers, friends, and family will be able to enjoy camping, live music, delicious food, craft beer, kids' activities, and vendor expo. 

These routes take cyclists through the lush, semi-desert landscape that skirts the lower elevations of the Santa Catalina Mountains and leads the way to the main climb up the "backside" northern slopes of Mount Lemmon.  The course consists of a mix of gravel/dirt and paved roads that wind their way through sections of the Coronado National Forest and through the neighboring town of San Manuel.  Along the way, you’ll pass through local cattle ranches and former mining operations while traveling across several cattle guards, over small narrow bridges, and through dry river beds known as washes. Incredible views of the San Pedro River Valley and Galiuro Mountain Range, a sky island mountain, can be seen from virtually anywhere along the course. 

Where the mountains meet the desert, you’ll find the town of Oracle nestled between boulders, oaks, and grasslands. Located just 35 miles north of central Tucson, in the northern foothills of the Catalina Mountains. Its elevation is a cool 4,500 ft. and is home to six guest ranches, great local eateries & shops, Oracle State Park, the Arizona National Scenic Trail, Arizona Zipline Adventures, Triangle L Ranch Sculpture Park, and Biosphere 2. 

We invite you to round up your posse of family and friends and join us for the weekend on Saturday and Sunday, October 30th & 31st to enjoy the beauty and charm of Oracle.  Spend the weekend with us!

For the benefit of the Sonoran Desert Mountain Bicyclists, Beads of Courage, and other community non-profits.

Link to MLGG 2020 Short Video 

*60 Grind discontinued for 2021 due to Forest Service Closure Order for the Upper Control Road FR38 beyond the Oracle Ridge Mine.

Bracket/Division Details & Fees:

  1. 50 Grind

    101 years ago, in 1920, the Mount Lemmon Control Road was the first road constructed to access the higher, cooler elevations of the Santa Catalina Mountains. For those seeking an extremely challenging and memorable experience on one of the most iconic mountains in the sport of cycling, this will be a huge slice of Lemmon adventure! The 50 Grind course is concentrated on a 41.5-mile loop with a 3.75-mile out-and-back (7.5 miles round-trip) section for 50 miles of total riding and takes riders through sections of the Coronado National Forest and the neighboring town of San Manuel. The 3.75-mile out-and-back section comes at Aid #1 (12 miles) and offers riders an additional 1000 ft of climbing in 3.5 miles. There are 36.7 miles of gravel/dirt roads and 12.3 miles of paved roads. Expect little to no motor vehicle traffic. Conditions of gravel roads can vary from hard-pack to rutted or washboard depending on the last time the roads were graded and/or touched by monsoon downpours. Elevations along the course vary from 3000 ft to 6000 ft. At the lowest point of the course, average high temps are in the upper 70’s for this time of the year. We highly recommend a Mountain Bike for this course, however, you won't be alone if you choose to challenge yourself and the terrain on a drop bar Gravel Bike.
    Activity Starts: 10/30/2021 07:00 - Activity Ends: 10/30/2021 16:00
    Registration opens : 4/13/2021 03:00
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Giveaway(s): Official Event T-Shirt
    Registration Periods:
    • Registration opens : 4/13/2021 03:00
      Registration closes : 8/1/2021 02:59
      Race fee : $80.00
      Processing fee : $5.64
    • Registration opens : 8/1/2021 03:00
      Registration closes : 9/7/2021 02:59
      Race fee : $90.00
      Processing fee : $6.22
    • Registration opens : 9/7/2021 03:00
      Registration closes : 10/4/2021 02:59
      Race fee : $100.00
      Processing fee : $6.80
    • Registration opens : 10/4/2021 03:00
      Registration closes : 10/29/2021 23:00
      Race fee : $120.00
      Processing fee : $7.96


  2. 40 Grind

    101 years ago, in 1920, the Mount Lemmon Control Road was the first road constructed to access the higher, cooler elevations of the Santa Catalina Mountains. For those seeking a challenging and memorable experience on one of the most iconic mountains in the sport of cycling, this will be your slice of Lemmon adventure! The 40 Grind course is a 41.5 mile loop and takes riders through sections of the Coronado National Forest and the neighboring town of San Manuel. There is 29.7 miles of gravel/dirt roads and 12.3 miles of paved roads. Expect little to no motor vehicle traffic. Conditions of gravel roads can vary from hard-pack to rutted or washboard depending on the last time the roads were graded and/or touched by monsoon downpours. Elevations along the course vary from 3000 ft to 5000 ft. At the lowest point of the course, average high temps are in the upper 70’s for this time of the year. The majority of riders will be on Mountain Bikes, however, you won't be alone if you choose to challenge yourself and the terrain on a drop bar Gravel Bike.
    Activity Starts: 10/30/2021 07:30 - Activity Ends: 10/30/2021 16:00
    Registration opens : 4/13/2021 03:00
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Giveaway(s): Official Event T-Shirt
    Registration Periods:
    • Registration opens : 4/13/2021 03:00
      Registration closes : 8/1/2021 02:59
      Race fee : $80.00
      Processing fee : $5.64
    • Registration opens : 8/1/2021 03:00
      Registration closes : 9/7/2021 02:59
      Race fee : $90.00
      Processing fee : $6.22
    • Registration opens : 9/7/2021 03:00
      Registration closes : 10/4/2021 02:59
      Race fee : $100.00
      Processing fee : $6.80
    • Registration opens : 10/4/2021 03:00
      Registration closes : 10/29/2021 23:00
      Race fee : $120.00
      Processing fee : $7.96


  3. 40 Grind E-Bike

    NEW non-competitive division for e-bikes only! 101 years ago, in 1920, the Mount Lemmon Control Road was the first road constructed to access the higher, cooler elevations of the Santa Catalina Mountains. For those seeking a challenging and memorable experience on one of the most iconic mountains in the sport of cycling, this will be your slice of Lemmon adventure! The 40 Grind course is a 41.5-mile loop and takes riders through sections of the Coronado National Forest and the neighboring town of San Manuel. There are 29.7 miles of gravel/dirt roads and 12.3 miles of paved roads. Expect little to no motor vehicle traffic. Conditions of gravel roads can vary from hard-pack to rutted or washboard depending on the last time the roads were graded and/or touched by monsoon downpours. Elevations along the course vary from 3000 ft to 5000 ft. At the lowest point of the course, average high temps are in the upper 70’s for this time of the year. The majority of riders will be on Mountain Bikes, however, you won't be alone if you choose to challenge yourself and the terrain on a drop bar Gravel Bike.
    Activity Starts: 10/30/2021 07:25 - Activity Ends: 10/30/2021 16:00
    Registration opens : 4/13/2021 03:00
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Giveaway(s): Official Event T-Shirt
    Registration Periods:
    • Registration opens : 4/13/2021 03:00
      Registration closes : 8/1/2021 02:59
      Race fee : $80.00
      Processing fee : $5.64
    • Registration opens : 8/1/2021 03:00
      Registration closes : 9/7/2021 02:59
      Race fee : $90.00
      Processing fee : $6.22
    • Registration opens : 9/7/2021 03:00
      Registration closes : 10/4/2021 02:59
      Race fee : $100.00
      Processing fee : $6.80
    • Registration opens : 10/4/2021 03:00
      Registration closes : 10/30/2021 02:59
      Race fee : $120.00
      Processing fee : $7.96


  4. 13 Grind Adventure Fun Ride

    100 years ago, in 1920, the Mount Lemmon Control Road was the first road constructed to access the higher, cooler elevations of the Santa Catalina Mountains. For those seeking an adventurous and memorable experience on one of the most iconic mountains in the sport of cycling, this will be the ultimate adventure! The 13 Grind course is an out-n-back 6.5 miles (13 miles round-trip) through portions of the Coronado National Forest while traveling by Peppersauce Campground and nearby Peppersauce Cave. An Aid Station will be fully stocked at the turnaround for folks to enjoy the views of the San Pedro River Valley and Galiuro Mountains while refueling for the ride back to the Finish at the 3C Ranch. The entire ride is on gravel/dirt roads with little to no motor vehicle traffic. Conditions of gravel roads can vary from hard-pack, to rutted or washboard depending on the last time the roads were graded and/or touched by monsoon downpours. Elevations undulate along the course around 4500 ft. Average high temps are in the upper 70’s low 80's for this time of the year. The majority of riders will be on Mountain Bikes, however, you won't be alone if you choose to challenge yourself and the terrain on a drop bar Gravel Bike.
    Activity Starts: 10/30/2021 08:30 - Activity Ends: 10/30/2021 12:30
    Registration opens : 4/13/2021 03:00
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Giveaway(s): Official Event T-Shirt
    Registration Periods:
    • Registration opens : 4/13/2021 03:00
      Registration closes : 8/1/2021 02:59
      Race fee : $60.00
      Processing fee : $4.48
    • Registration opens : 8/1/2021 03:00
      Registration closes : 9/7/2021 02:59
      Race fee : $70.00
      Processing fee : $5.06
    • Registration opens : 9/7/2021 03:00
      Registration closes : 10/4/2021 02:59
      Race fee : $80.00
      Processing fee : $5.64
    • Registration opens : 10/4/2021 03:00
      Registration closes : 10/29/2021 23:00
      Race fee : $100.00
      Processing fee : $6.80


  5. FREE Kids' Fun Ride

    For youth 12 and under. Ride or Race for 20 minutes on a marked course around the 3C Ranch lined with cheering friends, family, and volunteers!
    Activity Starts: 10/30/2021 09:00 - Activity Ends: 10/30/2021 09:20
    Registration opens : 4/13/2021 03:00
    Activity type: Bike ride 🚴🏿‍♂️
    Requires Date of Birth
    Requires phone number
    Registration Periods:
    • Registration opens : 4/13/2021 03:00
      Registration closes : 10/30/2021 02:59
      Race fee : $0.00
      Processing fee : $0.00


  6. Dirt Klunker Crit & Halloween Costume Contest!

    All proceeds go to benefit the Oracle Community Center. The Dirt Klunker Cirt & Halloween Costume Contest is Friday 5:30-6:30pm (4 Laps around the course) Open to ages 13+ (Beer Handups 21+) Registration closes at 5:20 (10 minutes prior to the Start)
    Activity Starts: 10/29/2021 17:30 - Activity Ends: 10/29/2021 18:30
    Registration opens : 4/13/2021 03:00
    Activity type: Bike race 🚴🏿‍♂️, Mountain bike race
    Requires Date of Birth
    Requires phone number
    Registration Periods:
    • Registration opens : 4/13/2021 03:00
      Registration closes : 10/29/2021 15:00
      Race fee : $10.00
      Processing fee : $1.58


  7. 60 Grind Gravel Bike Open

    Activity Starts: 10/30/2021 07:00 - Activity Ends: 10/30/2021 16:00
    Registration opens : 3/30/2021 20:34
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Registration Periods:
    • Registration opens : 3/30/2021 20:34
      Registration closes : 3/31/2021 02:59
      Race fee : $0.00
      Processing fee : $0.00


  8. 60 Grind Tandem

    Activity Starts: 10/30/2021 07:00 - Activity Ends: 10/30/2021 16:00
    Registration opens : 3/30/2021 20:34
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Registration Periods:
    • Registration opens : 3/30/2021 20:34
      Registration closes : 3/31/2021 02:59
      Race fee : $0.00
      Processing fee : $0.00


  9. 60 Grind Single Speed

    Activity Starts: 10/30/2021 07:00 - Activity Ends: 10/30/2021 16:00
    Registration opens : 3/30/2021 20:34
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Registration Periods:
    • Registration opens : 3/30/2021 20:34
      Registration closes : 3/31/2021 02:59
      Race fee : $0.00
      Processing fee : $0.00


  10. 50 Grind Single Speed

    Activity Starts: 10/30/2021 07:00 - Activity Ends: 10/30/2021 16:00
    Registration opens : 3/30/2021 20:34
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Registration Periods:
    • Registration opens : 3/30/2021 20:34
      Registration closes : 3/31/2021 02:59
      Race fee : $0.00
      Processing fee : $0.00


  11. 50 Grind Tandem

    Activity Starts: 10/30/2021 07:00 - Activity Ends: 10/30/2021 16:00
    Registration opens : 3/30/2021 20:34
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Registration Periods:
    • Registration opens : 3/30/2021 20:34
      Registration closes : 3/31/2021 02:59
      Race fee : $0.00
      Processing fee : $0.00


  12. 40 Grind Single Speed

    Activity Starts: 10/30/2021 07:00 - Activity Ends: 10/30/2021 16:00
    Registration opens : 3/30/2021 20:34
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Registration Periods:
    • Registration opens : 3/30/2021 20:34
      Registration closes : 3/31/2021 02:59
      Race fee : $0.00
      Processing fee : $0.00


  13. 40 Grind Tandem

    Activity Starts: 10/30/2021 07:00 - Activity Ends: 10/30/2021 16:00
    Registration opens : 3/30/2021 20:34
    Activity type: Gravel grinder
    Requires Date of Birth
    Requires phone number
    Registration Periods:
    • Registration opens : 3/30/2021 20:34
      Registration closes : 3/31/2021 02:59
      Race fee : $0.00
      Processing fee : $0.00


  14. 8K Trail Run & Foot Race

    One loop around a 5-mile course with a combination of dirt road, single-track trail, and a short sandy wash.
    Activity Starts: 10/31/2021 07:00 - Activity Ends: 10/31/2021 11:00
    Registration opens : 8/5/2021 15:20
    Activity type: Trail race
    Requires Date of Birth
    Requires phone number
    Giveaway(s): Official Event T-Shirt
    Registration Periods:
    • Registration opens : 8/5/2021 15:20
      Registration closes : 9/7/2021 02:59
      Race fee : $40.00
      Processing fee : $3.32
    • Registration opens : 9/7/2021 03:00
      Registration closes : 10/4/2021 02:59
      Race fee : $50.00
      Processing fee : $3.90
    • Registration opens : 10/4/2021 03:00
      Registration closes : 10/30/2021 23:00
      Race fee : $60.00
      Processing fee : $4.48


  15. 16K Trail Run & Foot Race

    Two loops around a 5-mile course with a combination of dirt road, single-track trail, and a short sandy wash.
    Activity Starts: 10/31/2021 07:00 - Activity Ends: 10/31/2021 11:00
    Registration opens : 8/5/2021 15:20
    Activity type: Trail race
    Requires Date of Birth
    Requires phone number
    Giveaway(s): Official Event T-Shirt
    Registration Periods:
    • Registration opens : 8/5/2021 15:20
      Registration closes : 9/7/2021 02:59
      Race fee : $50.00
      Processing fee : $3.90
    • Registration opens : 9/7/2021 03:00
      Registration closes : 10/4/2021 02:59
      Race fee : $60.00
      Processing fee : $4.48
    • Registration opens : 10/4/2021 03:00
      Registration closes : 10/30/2021 23:00
      Race fee : $70.00
      Processing fee : $5.06


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