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Bison or Bust! The Tertiary Trek: National Bison Day Ride to Midewin National Tallgrass Prairie

Chicago, Illinois, United States

calendar_today 07 Nov, 2026

directions_bike Cycling

About the Event

Bison or Bust! The Tertiary Trek invites cyclists to celebrate National Bison Day on November 7, 2026, with routes ranging from the challenging "A" Group at 201.2 kilometers to the more manageable "C" Group at 69.2 kilometers. Additionally, there's an option for solo riders in the "X" Group, covering a distance of 122.3 kilometers on a self-organized out-and-back route through Chicago and its surrounding Midewin National Tallgrass Prairie.
Chicago cyclists can choose from various distances to enjoy this scenic event that highlights both urban landscapes and natural beauty.

Races Offered

Bison or Bust! The Tertiary Trek - “A” Group

Nov 07, 2026

straighten

Distance — 201.2K

terrain

Type — Cycling

timer

117 days remaining

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$0.00

Bison or Bust! The Tertiary Trek - “B” Group

Nov 07, 2026

straighten

Distance — 149.7K

terrain

Type — Cycling

timer

117 days remaining

sell

$0.00

Bison or Bust! The Tertiary Trek - “C” Group

Nov 07, 2026

straighten

Distance — 69.2K

terrain

Type — Cycling

timer

117 days remaining

sell

$0.00

Self-organized out & back (no ride leader) - “X” Group “The Introvert Option”

Nov 07, 2026

straighten

Distance — 122.3K

terrain

Type — Cycling

timer

117 days remaining

sell

$0.00

Weather History

These values represent the 3-year monthly averages for November in Chicago.

thermostat Temperature

3.1° / 9.8°

wb_sunny Feels like

-1.8° / 5.5°

light_mode Avg sunshine hours

6h 2m

water_drop Avg rainfall

2.3 mm

ac_unit Avg snowfall

0.3 cm

air Avg wind speed

15.6 km/h (Gentle breeze)

opacity Sweat loss rate

Low

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Low (2.0)

humidity_mid Humidity

73.8%

wb_twilight Sunrise

07:40

nightlight Sunset

17:30

About Chicago

Learn more about the host city, Chicago.

Chicago is the home of the blues and the truth of jazz, the heart of comedy and the idea of the skyscraper. Here, the age of railroads found its center, and airplanes followed suit. "Stormy, Husky, Brawling / City of Big Shoulders," Chicago is a Heartland boomtown, its ethos defined by urban planner Daniel Burnham's immortal vision: "Make no little plans; they have no magic to stir men's blood." It is one of the world's great cities and the third largest city in the United States, behind only New York City and Los Angeles.

Hotels & Places to Stay

Runner Reviews

Read what other athletes have to say about their experience at the Bison or Bust! The Tertiary Trek: National Bison Day Ride to Midewin National Tallgrass Prairie.

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