Biking Going-to-the-Sun Road FAQ

Typically, you can bike GTTSR from mid-April through mid-June. However, plowing takes time, and there are usually setbacks each year due to spring snowfall or avalanches.

How far you can ride depends on plowing progress and current conditions. While we can't predict exact road openings or closures on any given day, we recommend planning your trip between early May and mid-June for the best experience.

We do not recommend biking GTTSR once it opens to vehicle traffic. If the road opens to cars on or before your reservation date, we will cancel and fully refund all bike and shuttle reservations.

You'll have the option of a full refund or a partial refund if you choose to switch to kayak rentals or a half-day bike ride around Apgar or Camas Road. We will contact you via text or email to confirm your preference.

This changes frequently based on plowing progress and current conditions. For the most up-to-date information, please check the GNP website HERE.

If you have questions about interpreting the map check the next FAQ, or text us at 406-219-7466—we're happy to help!

For reference: GNP Road Status Page

Here's how to read the map:

• Red lines: Roads closed to cars
• Yellow biker pin: Road Crew Closure (furthest biking point during active work, typically Mon–Thurs until ~4 PM)
• Red pin: Hiker/Biker Hard Closure (absolute stopping point at all times; passing this point is unsafe and fined)
• Closures exist on both the west and east sides of GTTSR, and the section between the hard closures is inaccessible

Since everyone's ability level is different, ride times vary. We recommend allowing a minimum of 4–5 hours for biking, plus a couple of additional hours for travel between our shop and the ride's starting point at the current vehicle closure.

Yes—biking is typically allowed seven days a week. However, how far you can ride depends on plowing progress and daily conditions.

• Monday–Thursday (until ~4 PM): You can bike to the "Road Crew Closure," the furthest point allowed while crews are actively working.
• After ~4 PM & Friday–Sunday: You can bike to the "Avalanche Closure," the designated safe stopping point for that period.

Closure locations change frequently based on weather and plowing progress. For the latest updates, check the GNP road status page.

Every child is different, but many kids have great stamina and do well on this ride.

We recommend biking as far as your family comfortably can, celebrating the accomplishment, and turning around when needed. Make sure kids understand how to brake safely on downhill sections.

• E-bike riders must be 16 or older
• We offer 20" and 24" kids' bikes, XS standard bikes, and pull-behind trailers for younger children

The ride begins at the current vehicle closure—typically Lake McDonald Lodge early in the season and the Avalanche Lake parking area later on.

Lake McDonald Lodge is about 10 miles from our shop, and Avalanche is about 15 miles away, so your ride will not start at our shop.

We do not recommend starting from our shop. We are located about 10 miles from Lake McDonald Lodge and 15 miles from Avalanche.

Starting from our shop adds 20–30 extra miles round trip, all on roads with vehicle traffic. GTTSR has no bike lane or shoulder, so this option is best suited only for highly experienced road cyclists.

We rent car and hitch racks if you prefer to drive yourself. We also offer shuttle service so you don't have to transport bikes or worry about parking.

No. Vehicles are not allowed past the road closure—only hikers and bikers can continue.

You will ride uphill from Avalanche (or Lake McDonald Lodge), then turn around and return the same way. We do offer a shuttle from West Glacier to the vehicle closure. Learn more HERE

Bring a backpack and be prepared for all four seasons. We recommend:

• Layers
• Water
• Snacks or lunch
• Sunglasses
• Gloves
• Camera or phone
• Sunblock
• Face covering or neck gaiter
• First aid kit
• Any necessary medications

Don't forget bear spray—and keep it accessible on your body, not in a bag.

Mountain weather changes quickly—especially in spring and early summer.

We recommend:

• Comfortable, non-denim pants
• Wool socks (better insulation and moisture-wicking than cotton)
• Closed-toe shoes (sneakers or hiking boots)

Bring a backpack with layers, including a rain jacket, gloves, extra socks, sunglasses, and warm layers. Conditions can shift from cold to warm—or sunny to snow—within hours.

Our shuttle begins and ends at Paddle Ridge. We offer two departure times: 9:00 AM and 12:00 PM.

We will load your bikes onto the shuttle before you arrive, then transport you to the current vehicle closure to begin your ride. You'll have approximately 4.5 hours to bike before meeting the shuttle for your return trip.

9:00 AM shuttle: returns at 2:30 PM
12:00 PM shuttle: returns at 5:30 PM

The shuttle costs $40 per person. All ages require a seat, and space is very limited, so reservations are required.

There is usually a short 2–4 day window when the road is fully plowed from Avalanche to Logan Pass and down to St. Mary before it opens to vehicles.

This timing is unpredictable and can occur anytime from early June to early July, making it nearly impossible to plan around unless you are local and flexible.

Additionally, if you rent an e-bike, the battery is unlikely to last the full 68-mile round trip.

For some people—yes.

E-bikes still require pedaling (they are not throttle-powered), but they provide significant assistance—especially uphill. At higher assist levels, it can feel like getting an extra boost with each pedal stroke.

If you don't ride regularly or want a more comfortable experience, an e-bike is a great option. That said, many riders successfully complete the ride on standard bikes—they may just go slower and take more breaks.

Everyone has different ability levels, and it's important to know your limits.

That said, biking GTTSR is challenging. If you take your time and pace yourself, many people are able to do it. It's also completely normal to walk your bike on steeper sections.

E-bikes can make a big difference on climbs. If you have concerns, consult your doctor before your ride.

The climb varies throughout the ride. From Avalanche Creek to Logan Pass, you'll gain about 3,200 feet over nearly 16 miles.

• Avalanche to The Loop: ~880 ft gain over 8 miles (gradual, more noticeable after mile 4)
• The Loop to Big Bend: ~1,420 ft gain over 5 miles
• Big Bend to Logan Pass: ~900 ft gain over 3 miles

In general, the ride starts with mixed terrain and becomes a steady uphill after The Loop.

Glacier National Park is home to 70+ species of mammals. In spring, animals may use the plowed road as an easier path than snowy terrain.

You may see bears, mountain goats, bighorn sheep, and more.

Carry bear spray on your body at all times—not in a bag—and keep a safe distance:

• 100 yards from bears and wolves
• 25 yards from other wildlife

If an animal changes its behavior because of you, you're too close.

Yes. Bike racks are available at Avalanche Trailhead, where you can lock your bikes before hiking Trail of the Cedars or Avalanche Lake.

If racks are full, you can group bikes together and lock them to a tree. Glacier Outfitters provides bike locks upon request.

Be sure to check trail status in advance, as some trails may still be snow-covered. View updates on the GNP website HERE.

We provide height ranges on each booking option.

Standard bikes are more flexible in sizing. E-bikes tend to run slightly larger, so if you're between sizes, we recommend sizing down.

Our bikes are not cruiser-style—you'll lean slightly forward while riding.

And to be honest, bike seats aren't typically comfortable—especially if you don't ride often. Expect a little soreness after your ride… but it's worth it.

Our e-bike batteries typically range from 15 to 60+ miles, depending on usage, terrain, rider weight, and assist level.

Using higher assist modes (like Turbo) will drain the battery faster than Eco or Sport modes.

Keep in mind: you only need enough battery to reach the daily bike closure (up to ~16 miles). The return ride is mostly downhill and requires little battery power.

Yes. Helmets and a tire repair kit are included with all rentals. Bike locks are available upon request.

We recommend booking at least two months in advance.

A good rule of thumb: reserve as soon as you know your dates. We typically open bookings at the start of the new year, and popular dates fill quickly.