Johnston Ridge Observatory

Located at the end of State Highway 504 (52 miles east of Castle Rock), in the heart of the blast zone, the observatory hosts interpretive displays that tell the biological, geological, and human story of Mount St. Helens. Enjoy a breathtaking view of the volcano and crater or set out on a hike in the blast zone. TAKE CARE OF YOUR PET AND HELP PROTECT THE MONUMENT! A Big Brown Dog on the Monument [http://www.fs.usda.gov/Internet/FSE_MEDIA/stelprdb5324071.gif]To protect plant and animal life and provide for visitor safety, pets are prohibited at all recreation sites and trails within the Monument’s restricted area. View a general map [https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprd3843447.pdf]. Pets are permitted only in designated pet areas and must be on a leash. Lack of shade and summer heat can endanger pets left in cars. For the safety and comfort of your pet, please arrange to leave your pet at home. Contact any Mount St Helens office [http://www.fs.usda.gov/detail/giffordpinchot/about-forest/offices] for information on where it is safe and legal to bring your pets. Accessible Adventures Video