Station Name: Barra de Potosi

4-Character ID: BAR1

Country: Mexico

 

Reported By: Feaux and Alvarado

Date: 26 SEP 98

Mark Set By: UNAM

Date Set: unknown – UNAM leveling line marker

 

Latitude: 17:33'52.93782" N, (17.56470)

Longitude: 101:25'31.05218" W, (-101.42529)

Height: 21.0 m

Position Source: Trimble SSE

Magnetic Declination: 7o East (Magnetic North is East of True North)

Declination Source: Declination as per USGS model IGRF-95, September 1998.

 

Site Topo: Carta Topografica 1:250000, Zihuatanejo, E14-7-10

Other Maps: Carta Topografica 1:50000, Zihuatanejo, E14C22

 

Site Owner: Mexican Government.

 

Location: Outside the town of Barra de Potosi.

 

To Reach: 0.00 ---- From Zihuataneja, drive south-east on hwy 200 towards the town of

Petatlan to the km 226 marker.

 

0.90 0.90 In the village of Achotes, turn right (south) at a dirt road which goes

towards Barra de Potosi.

 

5.30 4.40 Turn left (north-east) at an intersection, where the main road makes a 90

degree turn to the right (south-west). A fence runs NE-SW. The mark is

located next to the N side of the fence line, about 5 meters east of the

intersection.

 

5.33 0.03 Although it is possible to park the car within 2 meters of the monument,

to avoid multipath, drive another 30 meters or so and then walk back to

the monument.

 

The mark is set in a concrete "inverted pyramid" style monument used by

for surveying UNAM level lines. The monument is labeled INSTITUTO

DE GEOFISICA.

 

Main Station Mark: Steel pin with center punch, set in concrete.

 

Reference Marks: None.

 

Geology: Sand.

 

Comments: Access to a/c power and telephone can be found in the town of Barra de Potosi.

Gasoline can be found in Zihuatanejo. The closest place for medical service will be in

Zihuatanejo.

 

Hotels: Nearest lodging in Zihuatanejo.

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