Gifford Pinchot National Forest Gifford Pinchot National Forest - Headquarters Telephone: (360) 891-5000 TTY: (360) 891-5003 Hearing impaired callers only. 10600 N.E. 51st Circle Vancouver, WA 98682 Hours: Monday - Friday, 7:30am - 4:30pm Closed: 11:30 - 12:30 pm Cowlitz Valley Ranger District 10024 US Hwy 12 PO Box 670 Randle, WA 98377 (360) 497-1100 TTY: (360) 497-1101 Hearing impaired callers only. Hours: Monday-Friday, 7:45am - 4:30pm Mt. Adams Ranger District 2455 Hwy 141 Trout Lake, WA 98650 (509) 395-3400 TTY: (360) 891-5003 Hearing impaired callers only. Hours: Monday - Friday, 800am - 4:30pm Mount St. Helens National Volcanic Monument (and Surrounding Area) Headquarters 42218 N.E. Yale Bridge Rd. Amboy, WA 98601 (360) 449-7800 TTY: (360) 891-5003 Hearing impaired callers only. Hours: Monday - Friday, 800am - 4:30pm Mount St Helens NVM Visitor Centers Johnston Ridge Observatory 24000 Spirit Lake Highway P.O. Box 326 Toutle, WA 98649 (360) 274-2140 Mount St. Helens Visitor Center at Silver Lake 3029 Spirit Lake Highway Castle Rock, WA 98611 (Operated by Washington State Parks and Recreation Commission) Note: All offices are closed on National Holidays (Courtesy of the USFS)