What many people love most about the fall are the vibrant colors that mark the transition from summer to winter. Temperature, the amount of sunlight, and precipitation all affect how quickly the foliage will change from green to red, yellow, or orange. This interactive tool illustrates where autumn colors are peaking across the United States.

The map uses data from NOAA precipitation forecasts, daylight and temperature forecasts, historical precipitation data for this year, as well as other government and private data sources to visually indicate the foliage change between August and November, noting seven degrees of change. In addition to helping users plan a weekend getaway to enjoy fall’s many colors, the site offers some science trivia about what causes leaves to be certain colors and why leaves fall.  Check it out!

“Art Meets Maps” is an exhibition of pictographic maps at the Map and Atlas Museum of La Jolla, in La Jolla, San Diego.  Pictographic maps are maps that mix cartography, art, and illustration.  The exhibition includes nine pieces made by British artist and illustrator MacDonald Gill.  Continue reading →

If you need to plot out a hiking route, try CalTopo.  CalTopo allows you to print USGS topo maps using the 1:24000 USGS scale.  You can also measure the length of your hikes and compute elevation profiles.  Check it out!