In a classic case of bad timing, the day before a Western Slope rally to call for more oil and gas jobs and fewer environmental regulations, a tanker truck carrying 10,000 gallons of crude oil crashed just north of Gateway, Colo., Monday, threatening to contaminate the Dolores River. Crews were scrambling today to clean up the spill before rain and snow moved into the area where oil was threatening a creek winding through beaver ponds before running into the Dolores River — which eventually empties into the Colorado River