Jackson Bottom Wetlands Preserve is a facility of the City of Hillsboro Parks & Recreation Department. Comprised of 635 acres of wetlands and uplands next to the Tualatin River just 1 mile south of downtown Hillsboro. Our Nature Center is a 10,000 square foot building with interpretive center, bookstore, classroom, meeting space, offices and a huge covered deck on the east side. We provide classes for adults & families, school field trip programs, free community programs and more. Four miles of trails are open dawn to dusk. The Nature Center is open 10 am - 4 pm everyday except holidays. More information: https://www.hillsboro-oregon.gov/departments/parks-recreation/our-facilities/jackson-bottom-wetlands-preserve .