The schedule for a majority of the schools for the girls games can be found here:
Eastern Dakota Conference (EDC)
Western Dakota Association (WDA)
In order to access a single teams full schedule for 2009-2010, click on their team name for one of their games already listed. If the team has a schedule, it should bring you to their team page, just click on "View Schedule" on the right, under the "TEAM SCHEDULE" heading.