South Boundary Trail,
Laguna Atascosa National Wildlife Refuge
Elevation
The South Boundary Trail has a maximum elevation of 0 ft., a minimum elevation of -71 ft. and an elevation range of 71 ft.
Metrics
| [ A to B ] or [ B to A ] | |||
|---|---|---|---|
| Length 2 | Min Ele 3 | Max Ele 4 | Range 5 |
| 2.9 mi | -71 ft | 0 ft | 71 ft |
| [ A to B ] | |||
|---|---|---|---|
| Time 6 | Floors 7 | Gain 8 | Loss 9 |
| 59 min | 0.8 | 9 ft | 28 ft |
| [ B to A ] | |||
|---|---|---|---|
| Time | Floors | Gain | Loss |
| 59 min | 2.3 | 28 ft | 9 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 South Boundary 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: La Leona, TX
- North Topo Map: Three Islands, TX
- Northeast Topo Map: North of Port Isabel SW, TX
- West Topo Map: Laguna Atascosa, TX
- Topo Map: La Coma, TX
- East Topo Map: Port Isabel NW, TX
- Southwest Topo Map: Los Fresnos, TX
- South Topo Map: Laguna Vista, TX
- Southeast Topo Map: Port Isabel, TX
FAQ
What is the length of the South Boundary Trail?
The length of the trail is 2.9 miles (4.6 km) or 6,111 steps.
How long does it take to hike the South Boundary Trail?
A person in good physical health can hike the trail in 59 minutes in one direction and in 59 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 Blacklegged tick (Ixodes scapularis) may be present in this area. The Blacklegged tick transmits orrelia burgdorferi and B. mayonii (which cause Lyme Disease), Anaplasmosis, Borrelia Miyamotoi Disease, Ehrlichiosis, Babesiosis, and Powassan Virus Disease.
- The Brown dog tick (Rhipicephalus sanguineus) may be present in this area. The Brown dog tick transmits Rocky Mountain Spotted Fever.
- The Gulf Coast tick (Amblyomma maculatum) may be present in this area. The Gulf Coast tick transmits Rickettsia parkeri Rickettsiosis, a form of spotted fever.
- The Lone star tick (Amblyomma americanum) may be present in this area. The Lone star tick transmits Ehrlichia chaffeensis and Ehrlichia ewingii, (which cause human Ehrlichiosis), Heartland Virus, Tularemia, and STARI.
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.