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Jessie Tietjen

Wilderness Medicine Instructor

Jessie Tietjen, a wilderness emergency technician (WEMT), teaches first aid, wilderness survival skills and backcountry basics in the San Francisco Bay area. She has taught for REI and NOLS.

Latest Articles

  • Skills

    How to Go Hiking in the Rain

    Learn how to prepare for rain when you go hiking: Get tips on gear to bring, how to keep it dry and special concerns for wet-weather hikers.