MEADE EDM Array
Number of Bench marks: 4
Number of Surveys to 1993: 1
D ate of Initial Survey: 24 July 1989
Date of Latest Survey: 24 July 1989
Trespass Permission: None evidently required.
Directions: From Mettler, proceed west on State Hwy 166 0.35 miles to a side road left. Turn left and go south on Sabodan Street 2.2 miles to a side road right at a cattle guard. Turn right and go west on a paved road for 1 mile to a side road left. Turn left and g o south on a paved road crossing the aqueduct for 0.25 mile to a crossroad and a group of storage tanks in the southeast angle of the intersection. Turn right and go west on a paved road for 0.15 mile to a crossroad. Continue west and north on a bladed road for 0.15 mile to a T-road. Turn right and go east on a bladed road for 0.1 mile to station Meade F No. 1.
Comments: This quadrilateral is an NGS Earth Movement Study site. Previous NGS surveys are leveling surveys. Bench marks were established in 1969 and are standard NGS bronze tablets. Bench marks A and B were not found in 1989. The NGS determined bench marks heig hts by precise leveling. UCSB determined heights with a Wild TC2000 total station distance meter in 1989. Heights differ between the two agencies between 5 and 10 cm, probably because of the inaccuracy of determining heights by trigonometric leveling.
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