Rainbows are a common occurrence here in Estes Park due to an abundance of sunshine and frequent late afternoon showers. Our deck, which faces east, is a perfect vantage point to view single and double rainbows. And, here's an interesting phenomenon ... I had never noticed before that the primary rainbow shows red on the outside and violet on the inside while the secondary and fainter rainbow shows violet on the outside and red on the inside (mirror image). I saw this double rainbow last week.