Okefenokee Wilderness Area is located in the southeastern corner of Georgia bordering Florida. The wilderness is approximately 20 miles northeast of Jacksonville, Florida. The wilderness is part of the 396,009 acre Okefenokee National Wildlife Refuge. The wilderness area consists of 343,850 acres of islands, lakes, cypress forests, scrub-shrub areas, and open wet “prairies”. The IMPROVE site is located in a grass covered cleared area near the refuge headquarters. The nearest highway is highway 121, 3.3 miles to the east. The IMPROVE site is located at an elevation of 48 m MSL. The US Fish & Wildlife operates a wet deposition monitoring site within close proximity of the IMPROVE site.