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.
Instruction is specific to one of three physiographic regions in Maryland: the Coastal Plain, Piedmont, or Mountain Region. The course fee is $250 per person. Individuals interested in becoming a Master Naturalist apply to a Host Site in their region (see sidebar at right).