Mt. Pleasant Cemetery is a large, well-maintained cemetery in rural Conway County west of Hwy 92 and not too far from Brewer Lake.
You are looking for pill bottle hidden in a traditional way in what will be a fairly obvious hiding spot, and the cache is not on or near any grave. It shouldn't be too hard to find. Though you can park right near GZ, take a few moments anyway to browse interesting headstones. And practice CITO should you encounter any trash.
Remember that this is Arkansas, and you could potentially come across various critters and plants, some dangerous, so be careful.
No night hunting, and always respect the residents and those who may be visiting them. Put the cache back as you found it so others will enjoy the hunt also.
Should you find any problems with the cache, please let me know.