Palomar Mountain South Grade Road (S6 / S7)
Southern California's tightest switchback climb, ascending 4,400 vertical feet in just 12 miles through 21 numbered hairpins. Famous playground for knee-dragging sportbikes ending at the historic Hale Telescope.
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The holy ground of Southeast sport touring, nestled off GA-60 in the Chattahoochee National Forest. An exclusively two-wheeled sanctuary where evening campfires buzz with tire pressure debates, apex line critiques on Wolf Pen Gap, and warm camaraderie among long-haul Gold Wing tourers and dual-sport explorers.
Tank-Bag Quick Reference Sheet
Frequently Asked Questions
How many curves and miles is Palomar Mountain South Grade Road (S6 / S7)? ▼
Palomar Mountain South Grade Road (S6 / S7) spans 16 miles and packs approximately 140 curves (8.8 curves per mile) with an elevation delta of 1,100 ft - 5,560 ft and technical rating 9/10.
Where are the start and end coordinates? ▼
The route starts at Pauma Valley (CA-76), CA (Latitude 33.3039, Longitude -116.985) and finishes at Palomar Observatory / Summit, CA (Latitude 33.3563, Longitude -116.8647).
How can I download the GPX file for GPS navigation? ▼
Click the "Download Free GPX" button on this guide. The standard XML file is 100% free and ready to load into Garmin zūmo, BMW Motorrad Connected, Rever, Scenic, or Google Maps.