Juggernaut - World's 9th Largest Tree
Height: 309.20+ ft (94.24+ m) Elevation: 460 ft (140 m) GPS Latitude: 41.77610
Volume: 42,158 ft3 (1,194 m3) Creek: Jordan Creek GPS Longitude: -124.12886
Width: 27.37 ft (8.34 m) Grove: Metcalf Grove Discovery Date: June 2, 2014
Age: Park: Jedediah Smith Redwoods SP Discovered By: LiDAR

Notes: Juggernaut, also known as Grogan's Fault and Spartan, is the world's 9th largest tree, the largest single-stem coast redwood, and the 2nd largest (largest single-stem) tree in Jedediah Smith Redwoods State Park. Volume estimate includes main trunk only (excludes basal and reiterated stems and branches). Juggernaut (1359 AF points) is the unofficial (still unnominated) American Forests (formerly American Forestry Association) national champion coast redwood.

In spring 2007, the National Park Service, the Bureau of Land Management, the California State Parks Foundation, the Nature Conservancy, and Save the Redwoods League paid Sanborn Mapping Services $183,000 to conduct an aerial LiDAR survey of Redwood National and State Parks, the Headwaters Forest Reserve, and Humboldt Redwoods State Park. Over a period of three months, Sanborn's 1968 Aero Commander 500S aircraft, carrying Leica Geosystems topographic LiDAR sensors, flew back and forth above the parks, at an altitude of 2,625 ft (800 m), while a laser, firing through a hole in the bottom of the fuselage, scanned the terrain below. The aircraft traveled more than 13,500 mi (21,726 km) during the survey while LiDAR sensors recorded the precise location, between the ground and the treetops, of 85,000 points every second to generate a three-dimensional map of the forest. After researchers processed the LiDAR data to estimate the height, width, and volume of several trees in each park, naturalists hiked to the tallest and largest specimens to confirm their dimensions.

Experts suspect most giant (volume > 30,000 ft3 (850 m3)) coast redwoods represent ancient fusions of two or more separate trees. Hence, many single-stem giants, including Juggernaut, Iluvatar, Del Norte Titan, and El Viejo del Norte, may actually be fused redwoods like Lost Monarch and Melkor. Notable exceptions include Howland Hill Giant, Sir Isaac Newton, and Bull Creek Giant: these may be the only known unfused single-stem giants.

The largest coast redwood (Juggernaut) and the largest giant redwood (General Sherman) grow 460 mi (740 km) apart, the largest coast redwood (Juggernaut) and the tallest giant redwood (Near Sherman) grow 460 mi (740 km) apart, and the largest (Juggernaut) and the tallest (Hyperion) coast redwoods grow 40 mi (64 km) apart.

Drive: Juggernaut is 291 mi (468 km) north of San Francisco near Crescent City.

Northbound: From U.S. Highway 101, exit Humboldt Road just south of Crescent City. Turn right onto Humboldt Road and drive north 1.5 mi (2.4 km) to Howland Hill Road. Turn right onto Howland Hill Road and drive north 3.1 mi (5.0 km) to the Boy Scout Tree Trail sign and parking area located at 41.76856 -124.11022.

Southbound: From U.S. Highway 101, exit Elk Valley Road just south of Crescent City. Turn left onto Elk Valley Road and drive east 1.1 mi (1.8 km) to Howland Hill Road. Turn right onto Howland Hill Road and drive 3.6 mi (5.8 km) to the Boy Scout Tree Trail sign and parking area, located at 41.76856, -124.11022.

Hike: GPS-assisted navigation is recommended for this hike. From the trailhead, hike 1.6 mi (2.6 km) northwest on Boy Scout Tree Trail, across Jordan Creek, to the trail exit point, near 41.77781 -124.12945, just past a distinct pair of fused redwoods. Exit the trail here, veer right, and, using a GPS device, hike downhill/southwest, past a distinct curved tree, to the creek crossing near 41.77717 -124.12968. Cross Jordan Creek, veer left, and hike uphill/southeast to Juggernaut. This zig-zag route across Jordan Creek avoids obstacles present along the direct route.

Rating: Moderate One-Way Distance: 1.7 mi (2.7 km) Ascent: 635 ft (194 m)
Time: 1 hr Off-Trail: 650 ft (198 m) Descent: 561 ft (171 m)
Juggernaut Tree Hike Map

View Juggernaut Tree location in Google Maps

Panoramas: Click panoramas to take a virtual tour of Juggernaut Tree

Juggernaut Tree/Grogan's Fault Tree/Spartan Tree Juggernaut Tree/Grogan's Fault Tree/Spartan Tree Juggernaut Tree/Grogan's Fault Tree/Spartan Tree Juggernaut Tree/Grogan's Fault Tree/Spartan Tree

Photos: Pictures of Juggernaut Tree taken from different sides

Juggernaut Tree/Grogan's Fault Tree/Spartan Tree Juggernaut Tree/Grogan's Fault Tree/Spartan Tree Juggernaut Tree/Grogan's Fault Tree/Spartan Tree Juggernaut Tree/Grogan's Fault Tree/Spartan Tree Juggernaut Tree/Grogan's Fault Tree/Spartan Tree Juggernaut Tree/Grogan's Fault Tree/Spartan Tree