1
Franciscan Monastery
1400 Quincy St NE,
Washington,
DC
+1-202-526-6800|+1-202-529-9889.
Reverend Father Godfrey Schilling tried to provide a place in the United States for people who do not have the time, money or good health to visit the Christian sights of old Europe. Beneath his church and monastery, in th... showcaves.com
2
Upward Enterprises, Inc.
14115 Seneca Rd,
Germantown,
MD
Operating in the Washington DC, Maryland and Northern Virginia area, Upward Enterprises Inc. (UEI) is the leader in the DC Metropolitan area in team building, leadership training and a full service ropes course vendor.... outdoortrips.info
3
District Of Columbia Grotto
6304 Kaybro St,
Laurel,
MD
(301)725-5877
2nd Thurs. of even months at 7:30 p.m. Chevy Chase Comm. Ctr, Wash. DC, nssio.org
4
Baltimore Grotto
7600 Pindell School Rd,
Fulton,
MD
1st Wed. 8:00 p.m. UBMC Sondheim Bldg Room 1XX nssio.org
5
Fairfax Underground Network
7713 Shreve Rd,
Falls Church,
VA
A few meetings a year. Check with contact. nssio.org
6
Battlefield Area Troglodyte Soc
8061 Kittiwake Ct,
Springfield,
VA
(703)203-6975
2nd WEDS 7:00 p.m., See Web site nssio.org