What are the current parking conditions at the Little Si trailhead?

The main parking lot is frequently full, especially on weekends. Hikers are advised to be prepared to use the overflow parking lot, which was about half full as of [August 30](https://www.wta.org/go-hiking/trip-reports/trip_report-2026-08-31.132942458573) and still had spots available on November 01. On [October 18](https://www.wta.org/go-hiking/trip-reports/trip_report-2026-10-23.112625210059), the overflow lot was the starting point due to the main lot being full.

Are there any significant trail obstacles or hazards currently present?

The trail is generally in good condition with no major blowdowns reported recently. A report from [September 26](https://www.wta.org/go-hiking/trip-reports/trip_report-2026-09-26.234445138858) mentioned a couple of parts toward the end requiring stepping over fallen trees, and [September 28](https://www.wta.org/go-hiking/trip-reports/trip_report-2026-09-28.112131963114) noted small fallen trees at the summit. Erosion is becoming noticeable in places, with a plea to stay on rocks and avoid shortcutting switchbacks on August 30.

What is the current status of bugs on the trail?

Bugs have not been a significant issue in recent reports, with multiple accounts from October and November stating 'No bugs'. However, in mid-September, hikers noted bugs as an annoyance on [September 11](https://www.wta.org/go-hiking/trip-reports/trip_report-2026-09-12.142213880350) and [September 28](https://www.wta.org/go-hiking/trip-reports/trip_report-2026-09-28.112131963114), and bees were present at the summit on September 27.

What is the current condition of the trail surface?

The trail surface is generally dry and in good condition, though it can be damp after rain without becoming overly muddy. There are steep sections with roots and rocks, which provide good traction even when wet according to reports from [September 13](https://www.wta.org/go-hiking/trip-reports/trip_report-2026-09-13.143007476853) and September 8. A report on [August 30](https://www.wta.org/go-hiking/trip-reports/trip_report-2026-08-31.132942458573) mentioned erosion in some areas.

Little Si

Snoqualmie Region

updated 3 days ago

Today, November 08, 2026, Little Si is experiencing peak fall foliage, with yellow vine maples noted by a hiker on November 01. The trail itself is in good condition, damp but without significant mud, according to the same report. Parking can be challenging, with the main lot often full, necessitating the use of the overflow lot as seen on November 01 and October 18. The trail is popular and can be busy, particularly with dogs, making navigation challenging at times, as reported on November 01. Some minor obstacles, such as fallen trees and scrambles, have been noted in earlier reports, with the last mention on September 26. Bees were observed near the summit in late September and September 27, and yellow jackets were an annoyance on September 11.

Generated from 147 trip reports. Trails change faster than reports do, so check anything you’d turn around for.

What hikers ask about Little Si

Generated from the most recent trip reports, newest 3 days ago. Check anything you’d turn around for.

The main parking lot is frequently full, especially on weekends. Hikers are advised to be prepared to use the overflow parking lot, which was about half full as of August 30 and still had spots available on November 01. On October 18, the overflow lot was the starting point due to the main lot being full.