| Name: | Black Hills Astronomical Society |
| Address: | 4912 Breckenridge Ct., Rapid City, SD 57702 USA |
| Contact: | Michael J. O'Connor |
| Phone: | 605-342-3793 |
| Email: | mocgoc@rapidnet.com |
| URL: | |
| Members: | 12 members. O |
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| Name: | Sioux Empire Astronomy Club |
| Address: | SIoux Falls, SD USA |
| Contact: | FNino |
| Phone: | |
| Email: | fgnino@yahoo.com |
| URL: | |
| Members: | |
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