Version 1.5 — GPS Accuracy Pass We re-verified GPS coordinates for all 124 sites along the route, from Washington to Southern California — cross-checking each one against current mapping data and, where needed, historical records. Four locations got position corrections, including Seaside Promenade (OR), Brookings Harbor (OR), Muir Beach Overlook (CA), and Santa Monica Pier — each was pointing several hundred feet off from where it should be. Under the hood, this builds on the coordinate navigation fix from our last update, so Apple/Google Maps directions should now land you right on target at every stop.