The bottom fell out of the thermometer. The sky cleared, the earth radiated, and the temperature fell to twenty-one last night, but a perfect day today for a drive over the divide. Made a leisurely start; waited long enough for the sun to warm any remaining frost and ice off the roads first. A stop at the top of Vail Pass for lunch. A long downhill rollout to Denver. A bit of traffic getting through the metro area, and we’re stopped for a couple nights at St Vrain State Park east of Longmont, close to Becky’s house.