
About This Spring
## Overview Grotto Spring is a natural mountain spring located on the grounds of the National Shrine Grotto of Our Lady of Lourdes, one of the oldest American replicas of the famed Lourdes grotto in France. The shrine sits on the scenic campus of Mount St. Mary's University in Emmitsburg, Maryland, nestled in the foothills of the Catoctin Mountains. The spring has long been a draw for visitors seeking both spiritual renewal and refreshing natural water. The Grotto itself dates back to the early 19th century, when Father John DuBois — who later became Bishop of New York — discovered the mountainside setting and began using it as a place of prayer and reflection. Over the decades, the site evolved into a nationally recognized Catholic shrine, attracting hundreds of thousands of pilgrims and visitors each year. The spring water, sometimes referred to as "Blessed Grotto Water," holds special significance for many of these visitors. The water has been reported to taste exceptionally clean, with a measured TDS (total dissolved solids) reading of approximately 10 ppm — remarkably low, indicating very pure, minimally mineralized water. This is consistent with a mountain spring filtering through the ancient metamorphic rock formations of the Blue Ridge province in western Maryland. ## Directions 1. From the town of Emmitsburg, MD, head south on **US-15 S** for about 1 mile. 2. Turn right (west) onto **Grotto Road** (also signed for Mount St. Mary's University / National Shrine Grotto of Lourdes). 3. Follow Grotto Road as it winds uphill onto the university grounds. The address is **16330 Grotto Road, Emmitsburg, MD 21727**. 4. Look for signs directing you to the **National Shrine Grotto of Our Lady of Lourdes** and the **Miller Family Visitor's Center**, which is located nearby. 5. Park in the designated visitor parking area and follow the walking paths toward the Grotto. The spring is located within the shrine grounds. **GPS Coordinates:** 39.681562, -77.356217 ## What to Expect The Grotto Spring is situated within the beautifully maintained grounds of the National Shrine, surrounded by forest paths, religious statuary, and peaceful mountain scenery. The setting is serene and well-kept, making it a pleasant destination whether you're visiting for the water, the spiritual significance, or simply to enjoy the natural beauty of the Catoctin Mountain foothills. The spring is accessible during the shrine's visiting hours: **8:30 AM to 4:30 PM daily**, with gates closing by 5:00 PM. The Miller Family Visitor's Center is nearby and can provide additional information about the grounds. Visitors have reported that the spring water tastes delicious, and the extremely low TDS reading of around 10 ppm suggests very soft, lightly mineralized water — among the purest you'll find from a natural spring. The site is well-established and easy to access, with paved and gravel paths leading through the shrine grounds. The area is open to the public and there is no admission fee to visit the Grotto. The surrounding landscape is especially beautiful in autumn when the hardwood forests of the Catoctin range put on a vivid display of fall color. Spring and summer visits are also rewarding, with lush greenery and wildflowers along the forest paths. The elevation and mountain setting can make temperatures a few degrees cooler than the surrounding lowlands, so a light layer is worth bringing in the shoulder seasons.
Getting There
Address
16330, Grotto Rd, Emmitsburg, MD 21727, US
GPS Coordinates
39.681562, -77.356217
Directions
Community SubmittedDirections 1. From the town of Emmitsburg, MD, head south on **US-15 S** for about 1 mile. 2. Turn right (west) onto **Grotto Road** (also signed for Mount St. Mary's University / National Shrine Grotto of Lourdes). 3. Follow Grotto Road as it winds uphill onto the university grounds. The address is **16330 Grotto Road, Emmitsburg, MD 21727**. 4. Look for signs directing you to the **National Shrine Grotto of Our Lady of Lourdes** and the **Miller Family Visitor's Center**, which is located nearby. 5. Park in the designated visitor parking area and follow the walking paths toward the Grotto. The spring is located within the shrine grounds.
Water Safety Disclaimer
Try Water does not independently test, verify, or guarantee the quality, safety, or potability of any water source listed on this site. Listings are based on publicly available data, community contributions, and historical reports — not laboratory analysis.
Water conditions at natural springs can change at any time due to weather, contamination, agricultural runoff, seasonal variation, or other environmental factors. A spring that was safe to drink from yesterday may not be safe today.
Always test water yourself before drinking. We strongly recommend using a portable water testing kit or filter (such as a LifeStraw) and consulting local health authorities when in doubt. Never rely solely on the information provided here when making decisions about drinking from a natural water source.
By using this site, you acknowledge that you assume all risk associated with visiting and consuming water from any listed source.
Quick Facts
Have You Visited?
Help the community know this spot is still active.
Community Verification
0%Help verify this listing and earn your Explorer badge
Tips
Bring empty jugs or bottles to fill up.
Accessible by road — pull off carefully.
Parking available nearby.
Safety Info
Always test or filter water from natural springs before drinking. Water quality can change seasonally.
Bring your own containers. A portable water filter like a LifeStraw is recommended.
Respect the environment. Pack out everything you bring in.