| 1. Gradolph Field Airport
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| Aeronautical information includes location, runway, taxiways, navaids, radio frequencies, FBO information, weather, sunrise and sunset times, aerial photo, airport diagram. |
| http://www.airnav.com/airport/88G |
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| 2. Ingenium Engineering Services
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| Science consultant and expert witness. Provides consulting for accident investigation and reconstruction, and litigation support for mechanical and forensic engineering. |
| http://www.ingeniumservices.com |
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| 3. Petersburg Local News: Topix
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| Local, regional, and statewide news collected from diverse sources on the web. |
| http://www.topix.com/city/petersburg-mi |
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| 5. The Auto Express
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| Sells repairable automobiles with clean or salvaged titles. All vehicles sold meet state inspection guidelines. Small selection of automobile parts. |
| http://www.theautoexpres.com |
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| 6. Totem Pole Park
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| An affordable family campground. Camping, fishing, and recreational activities. |
| http://www.michcampgrounds.com/totempole |
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