Glacier National Park · NPS + MDT
Going-to-the-Sun Road
50 miles · Logan Pass (6,646 ft) · Continental Divide crossing
🚫 Closed
GTSR is closed for the season. Typically reopens mid-June when snow is cleared. Monitor nps.gov/glac for current status.
estimated days to typical opening
Average of 11-year opening record. Varies by snowpack.
Road Length
50 miles
St. Mary → West Glacier
Summit Elevation
6,646 ft
Logan Pass
Typical Opening
Mid-June
~June 21 avg (11-yr)
Typical Closing
Mid-October
Weather dependent
Vehicle Limit
21 ft / 8 ft
Length / width (mid-section)
Plow Season
Apr – June
Both ends toward Logan Pass
❄️ Glacier NP Snowpack (SNOTEL) · 22" avg at Glacier NP SNOTEL stations
High snowpack → later opening. Plow crews work from both St. Mary and West Glacier sides toward Logan Pass.
⚠️ Vehicle Size Restrictions (Avalanche Creek → Sun Point)
📏Maximum length: 21 feet (including tow vehicle + trailer)
↔️Maximum width: 8 feet
🚌Commercial vehicles prohibited May 15 – Sept 10 (over-length vehicles)
🕐Pull-outs required for over-size vehicles outside restricted section
🅿️Logan Pass parking fills by 8–9 AM in peak season — arrive early or take the shuttle
📷 Webcams
Logan Pass Summit
Elevation 6,646 ft · Continental Divide
NPS/MDT camera — updated every 10 minutes
View Live →
The Loop
West side · below Logan Pass
Shows snowpack depth + road clearing progress
View Live →
Big Bend
East side · mid-elevation
Road surface + mountain panorama
View Live →
St. Mary Valley
East entrance · St. Mary Lake
East side approach conditions
View Live →
📅 Historical Opening Dates
| Year |
Full Opening |
Seasonal Close |
Notes |
| 2025 |
June 22 |
Oct 12 |
|
| 2024 |
June 19 |
Oct 13 |
|
| 2023 |
June 21 |
Oct 8 |
|
| 2022 |
June 24 |
Oct 9 |
|
| 2021 |
June 28 |
Oct 10 |
|
| 2020 |
July 13 |
Oct 11 |
Delayed (COVID + heavy snow) |
| 2019 |
June 26 |
Oct 14 |
|
| 2018 |
June 15 |
Oct 7 |
|
| 2017 |
June 26 |
Oct 8 |
|
| 2016 |
June 22 |
Oct 9 |
|
| 2015 |
June 19 |
Oct 11 |
|
Data: NPS Glacier + MDT 511mt.net · SNOTEL via USDA NRCS Open-Meteo · Updated May 30, 10:31 PM UTC
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