When was the last time you planned a backpacking trip without a computer, phone, or GPS unit? Think hard. Unless you're a dedicated old-schooler, it probably wasn't recently. If your map skills are ...

In the newest release of Surfer, users can make their 3D models more informative by adding any number of contour slices, at any orientation, through their 3D grid. GOLDEN, CO, UNITED STATES, March 11, ...