Trail & Park Road Closures
As of late October 2026, Bristlecone Pine Trail and trailhead parking lot are closed to park users for construction as part of the Bristlecone Pine Trail ADA Accessibility Improvements Project.
For more information about Hoyt Arboretum’s trails and alternative ADA paved trails to use during the closure, please see our Trail Usability page.
General Information
Hoyt Arboretum is a free, public park and is open from 5am to 10pm daily.
The Visitor Center is open 10am to 4pm daily with exceptions. 503.865.8733
Current information for Hoyt Arboretum can be found at Plan Your Visit.
Weather Information
The Hoyt Arboretum Visitor Center and programs may be closed or cancelled in cases of inclement weather including winter storms, thunder and lightning, high winds, and excessive heat. Closures and cancellations will be listed on this page along with current weather information to help you prepare for your visit.
Follow updates from Hoyt Arboretum’s Weather Station on Weather Underground.
Inclement weather updates are posted to this webpage and the Hoyt Arboretum Facebook Page.