Definition(s) Flex Joint. A steel and elastomer assembly having central through-passage equal to or greater in diameter than the riser bore that may be positioned in the riser string to reduce local bending stresses.
The Master Naturalist Program is co-sponsored by the Wildlife Resources and State Parks and Recreation sections of the West Virginia Division of Natural Resources, Davis & Elkins College and the West Virginia University Extension Service.
The East-Central Illinois Master Naturalist (ECIMN) Program, established in 2005, is sponsored by University of Illinois Extension Champaign County, Champaign County Forest Preserve District, and Urbana Park District and is available to residents of Central Illinois.