I think it has to be thier idea whether or not the water is ok. Sewer ponds seem to be the ideal swimming hole.
sandcreek, I was up at the Prairie this weekend, the huge swaths of eryngo in amongst those yellow flowers was really cool. There just wasn't any sunshine to take a good picture. Have you noticed as the weather cools down, the "cool" colored flowers come back? Like blue and purple? the sumac is staring to turn now too.
naturegirl