Best hikes in Shell Ridge Open Space

Ambleway maps 17 hikes in Shell Ridge Open Space, from a 2.0-mile walk to a 10-mile day out. All of them score as wild, staying clear of roads and development for most of the route; the wildest is Bob Pond–Twin Ponds, 6 sights. The biggest climb is Bob Pond–Twin Ponds, 6 sights, gaining 1,588 ft, and the network tops out at 869 ft.

• Corral Spring Trail–Fossil Hill Trail, 5 sights 2 mi · ▲ 257 ft
• Sugarloaf-Shell Ridge Trail & Twin Ponds Loop Trail Loop 2.1 mi · ▲ 363 ft
• Sulphur Creek Pond–Bob Pond Loop, 4 sights 2.2 mi · ▲ 435 ft
• Franco Ridge Loop Trail 2.3 mi · ▲ 410 ft
• Twin Ponds–TwinPonds, 5 sights 2.7 mi · ▲ 458 ft
• Deer Lake–Costanoan Trail, 3 sights 2.7 mi · ▲ 460 ft
• Bob Pond–Twin Ponds, 5 lakes 3.4 mi · ▲ 559 ft
• Costanoan Trail–Flat Top Trail, 3 sights 4.5 mi · ▲ 1,093 ft
• Sugarloaf Hill–Franco Ridge Loop Trail, 4 sights 4.6 mi · ▲ 684 ft
• Sulphur Creek Pond–Deer Lake Loop, 6 lakes 4.7 mi · ▲ 650 ft
• Fossil Hill–Sulphur Creek Pond Loop, 8 lakes 4.8 mi · ▲ 772 ft
• Buckeye Ravine Viewpoint–Sulphur Creek Pond, 7 sights 4.8 mi · ▲ 905 ft
• Haystack Hill–Sulphur Creek Pond, 10 sights 6.1 mi · ▲ 976 ft
• Diablo Foothills Regional Park Viewpoint–Buckeye Ravine Viewpoint, 9 sights 7.3 mi · ▲ 998 ft
• Bob Pond–Twin Ponds, 6 sights 8.8 mi · ▲ 1,588 ft
• Sugarloaf Hill Benchmark–Bob Pond, 11 sights 9.3 mi · ▲ 1,552 ft
• Willow Spring Pond–Twin Ponds, 9 sights 10.3 mi · ▲ 1,560 ft