I have lived in Sammamish WA, USA since 1985. I hike the foothill and Cascade trails near here frequently and know them very well. My goal with Open Street Maps is to correct and improve the hiking maps in this area. For hiking, I mostly I use Gaia GPS as my mapping tool, but also use Cal Topo and AllTrails. For road biking, I use Ride With GPS For mountain biking, I use Trail Forks.