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Upcoming Events

Sunday, Oct. 23, 1:30 PM: Burn Workshop in Madison County: Don and Chris Eyerly, at 1671 Fox Trail west of Winterset, welcome any FLS! member/guest who would like to observe a prairie burn. Don wants to burn as early as this weekend on a patch of prairie where he has invasives like birds foot trefoil and other cool season undesirables. Hence the timing of this burn, hoping to do the most damage to those still actively growing species. Participants/observers are encouraged to be at his house by about 1:30 and ready for a good half mile walk to the burn site. Parking is available along his driveway and in front of the house. Safety dress for any burn event includes all cotton clothing, leather shoes, and leather gloves. If you'd like to get some experience with a flapper or a fire rake, bring your own or let your interest be known at the prairie. DIRECTIONS: Take Highway 92 west from Winterset to Harmon Avenue. Turn south to the tee, that is Foxtrail. Go west {right }, thru 12’ 10” bridge. Driveway is to the right.--------------------------------------------------------------------------------------------------------------------------------------Fall Mushroom Workshop in the Loess Hills: Saprobes and Symbionts workshop at Hitchcock Nature Center, Pottawattamie County on Thursday, Nov. 3. Mycologist Katie Thompson will lead the group. Visit for details.

Next SIOSA board meeting

Thursday, Nov. 3, 7:00 PM at Decatur County Courthouse in Leon


Welcome to the website of The Southern Iowa Oak Savanna Alliance (SIOSA). We are a non profit organization involved in the preservation and conservation of Iowa’s oak savanna and prairie ecosystem.


New: Download the Decatur County Conservation Board Prescribed Fire Burn Plan Form to Help Plan Your Burn – Click Here