The temperatures are finally coming down. Texas parks can be hiked without too much sweat. The secibd largest canyon in the United States is just north of Lamesa.I first visited Palo Duro State Park in 1978 while I was a student at Baylor. My friend Roy was from Amarillo and one weekend he drove me up to his home.On that Saturday, we went south into the park and started boulder hopping up and down one of the many side canyons. I remember meeting a baby rattlesnake on a ledge on the way up.Fortunately, it did not bite me and I ...