I see that they still own the fastest two times ever from that high school in the 1600 meters so it isn't like they came from a major powerhouse program.
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Running
Girls All-Time 1,600 meters Santa Rosa
Tuesday, June 12, 2012 at 10:07 by Running
4:42.79 Julia Stamps, Santa Rosa #1 1997
4:46.17 Sara Bei, Montgomery #1 2001
4:49.63 Jenny Aldridge, Maria Carrillo #1 2000
4:49.63 Jacque Taylor, Casa Grande #1 2008
4:52.58 Kim Conley, Montgomery #2 2004