| 1. City-Data.com: Castana, Iowa
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| Profiles housing, population demographics, jobs, weather and climate tables. Contains a list of area hospitals, schools, airports, radio and TV broadcast stations, charts and maps. |
| http://www.city-data.com/city/Castana-Iowa.html |
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| 2. Timber Ridge Ranch and Winery
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| Offers off road trail riding, lodging, hunting and fishing, wine tasting and gift shop. Describes services and includes rates and photographs. |
| http://www.timberridgeiowa.com |
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| 3. Wikipedia: Castana, Iowa
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| Encyclopedia article presents geography and demographics of this community in Monona County. |
| http://en.wikipedia.org/wiki/Castana,_Iowa |
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