It's looking up in high country / Spring thaw leaving green meadows, lots of water: "The high country looks as if it's in a winter deep freeze, but is defrosting fast, the equivalent of about three inches of snow per day. Near the Sierra crest, where snowpacks range 5 to 15 feet, that means access to high-country lakes, camps and wilderness will be delayed until late June, and in some cases, Fourth of July Weekend. Major snowmelt and resulting high runoff will make rafting hazardous in many rivers this weekend, the traditional start to the whitewater season. "