While a companion well on the lower slopes served human pilgrims, the higher one was kept for cattle, a division of sacred purpose that is quietly remarkable and has few obvious parallels in the broader Irish holy well tradition. The well itself is a modest but deliberate structure: enclosed on three sides by large stones, roofed with slabs over which further stones have been piled into a rough point, and open to the south. Inside, a stone ledge partly covers the water, and religious objects have been left on it, the residue of a devotional habit that has thinned considerably over the years.

Both wells on Musheramore share the name Tobairín na bhFaithní, meaning roughly "the little well of the warts", and both were visited on St. John's Day, the 24th of June, the feast that in Ireland absorbed many older midsummer customs around water and fire. A source from 1937 records that rounds were still being made at each well on that day, though even then the note is slightly elegiac: not many, it says, go to the top well any more. Holy well "rounds" are a form of circumambulatory prayer, walking a prescribed circuit around the site a set number of times while reciting particular prayers, a practice with roots deep in pre-Christian ritual. The cure attributed to both wells was specific and practical: washing in the water was said to remove warts, which places them within a widespread tradition of wells associated with skin complaints rather than the more dramatic cures of blindness or lameness found elsewhere.

The well sits in the commonage of Muisire Mountain, open land near the summit, so there is no enclosure to navigate, though the altitude and terrain mean the approach is a proper hill walk rather than a casual stroll. The structure is small and easy to miss against the surrounding rock, so looking for the stone-piled roof is the most reliable way to locate it. Midsummer remains the date with the strongest historical association, even if the formal pattern of rounds is no longer widely observed.