Old Fallen Bridge Trail,
Jack London State Historic Park
Elevation
The Old Fallen Bridge Trail has a maximum elevation of 1,135 ft., a minimum elevation of 997 ft. and an elevation range of 138 ft.
Metrics
| [ A to B ] or [ B to A ] | |||
|---|---|---|---|
| Length 2 | Min Ele 3 | Max Ele 4 | Range 5 |
| 0.3 mi | 997 ft | 1,135 ft | 138 ft |
| [ A to B ] | |||
|---|---|---|---|
| Time 6 | Floors 7 | Gain 8 | Loss 9 |
| 6 min | 0.6 | 7 ft | 125 ft |
| [ B to A ] | |||
|---|---|---|---|
| Time | Floors | Gain | Loss |
| 7 min | 10.4 | 125 ft | 7 ft |
Calories
The following chart shows the total calories that you may expend on the trail while hiking in both directions. The chart is based on data derived from a statistical model of energy expenditure that relates gross weight, typical speed and trail topography.
Topo Maps
Download the PDF Old Fallen Bridge Trail topo map and the adjoining quads to plan your hike. These are full-sheet, 7.5 Minute (1:24,000 scale) topographic maps.
Adjoining 7.5' Quadrangle Legend
- Northwest Topo Map: Santa Rosa, CA
- North Topo Map: Kenwood, CA
- Northeast Topo Map: Rutherford, CA
- West Topo Map: Cotati, CA
- Topo Map: Glen Ellen, CA
- East Topo Map: Sonoma, CA
- Southwest Topo Map: Petaluma, CA
- South Topo Map: Petaluma River, CA
- Southeast Topo Map: Sears Point, CA
FAQ
What is the length of the Old Fallen Bridge Trail?
The length of the trail is 0.3 miles (0.4 km) or 573 steps.
How long does it take to hike the Old Fallen Bridge Trail?
A person in good physical health can hike the trail in 6 minutes in one direction and in 7 minutes in the opposite direction.
Warnings
Prevent tick bites: Treat clothing and gear, such as boots, pants, socks and tents with products containing 0.5% permethrin.
(cdc.gov)
- The American dog tick (Dermacentor variabilis) may be present in this area. The American dog tick transmits Tularemia and Rocky Mountain Spotted Fever.
- The Brown dog tick (Rhipicephalus sanguineus) may be present in this area. The Brown dog tick transmits Rocky Mountain Spotted Fever.
- The Western blacklegged tick (Ixodes pacificus) may be present in this area. The Western blacklegged tick transmits Anaplasmosis and Lyme Disease.
Footnotes
- Steps is a unit of distance equal to the sum of stride lengths that vary with the terrain.
- Length is the distance of the trail between the two trailheads, measured on the trail.
- Min Ele is the minimum elevation on the trail.
- Max Ele is the maximum elevation on the trail.
- Range is the difference between maximum and minimum elevation.
- Time is the typical total time required to hike the trail.
- Floors is the gain divided by twelve feet, the height of one floor.
- Gain (cumulative elevation gain) is the sum of every gain in elevation.
- Loss (cumulative elevation loss) is the sum of every loss in elevation.