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Cascades Field Guide
A practical field guide to the North Cascades Highway and surrounding areas.

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  • Seasonal Planning

Wildfire Smoke in the North Cascades: How to Check AQI and Choose a Plan B

Check wildfire smoke, AQI, road closures, and Plan B options before driving Highway 20 through the North Cascades. Know when to continue, shorten, or pivot.
  • Read more about Wildfire Smoke in the North Cascades: How to Check AQI and Choose a Plan B

Best Time to Visit North Cascades: Month-by-Month SR-20 Guide

Compare the North Cascades each month for Highway 20 access, snow, crowds, camping, wildflowers, larches, smoke, and which North Cascades trips actually work.
  • Read more about Best Time to Visit North Cascades: Month-by-Month SR-20 Guide

North Cascades Complex Backup Plans: Rain & Highway Closure

Rain does not ruin a North Cascades trip unless you keep chasing the wrong version of the day. The first question is whether SR-20 is still drivable past Newhalem, because a wet open-corridor day and a winter-closure day need different backup plans.
  • Read more about North Cascades Complex Backup Plans: Rain & Highway Closure

North Cascades Current Conditions: Highway 20, Washington Pass, Smoke & Road Alerts

North Cascades current conditions for Highway 20, Washington Pass, park roads, smoke, fire restrictions, and official road alerts before you drive.
  • Read more about North Cascades Current Conditions: Highway 20, Washington Pass, Smoke & Road Alerts

When Is the North Cascades Open? Seasonal Access Guide for Highway 20

Plan North Cascades Highway 20 access by season, including SR 20 openings and closures, Rainy Pass, Washington Pass, trailheads, campgrounds, road checks, and backup plans.
  • Read more about When Is the North Cascades Open? Seasonal Access Guide for Highway 20

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