National Geodetic Survey

Historical text in data base for PID(s):

DE5827

PID	Report Date	COND	AGENCY	COP	TEXT
DE5827	1937	S	CGS	*	*
DE5827	19980721	G	NGS	DW	OTHER ALIASES INCLUDE IGB 12020, U 772 AND NN 222. STATION IS AT ABANDONED USGS TUCSON MAGNETIC OBSERVATORY IN MORRIS K UDALL PARK, TUCSON, ARIZONA. IT IS 8.1 MI (13.0 KM) ENE OF PIMA COUNTY COURTHOUSE. TO ACCESS FROM I-10 EXIT 270, GO N ON KOLD ROAD FOR 10.1 MI (16.3 KM) . TURN E (RIGHT) ONTO TANQUE VERDE ROAD AND GO 0.72 MI (1.16 KM) . TURN S (RIGHT) INTO PARK AND GO 0.03 MI (0.05 KM) . TURN SE, LEFT, ONTO SIDE ROAD AFTER FIRST PAVILLION AND GO 0.19 MI (0.31 KM) THROUGH FENCE TO OLD HOUSE/OFFICE AREA. STATION IS ON S OF TWO PIERS IN CENTER OF OBSERVATION AREA, 98 M (321.5 FT) E OF S RESIDENCE, 24 M (78.7 FT) N OF E SEISMIC VAULT. 25.6 M (84.0 FT) N OF W SEISMIC VAULT, 25.4 M (83.3 FT) S OF WOOD SLAT BUILDING, 90.3 M (296.3 FT) NW OF RM MAGNETIC AZIMUTH NO 3, 1.37 M (4.49 FT) S OF TUCSON B AND 1.46 M (4.79 FT) SE OF WITNESS POST. PIER IS 0.46 M (1.51 FT) ACROSS. DISK IS 9 MM BELOW PIER TOP. TUCSON A AND TUCSON B WERE FORMERLY THE SAME PENDULUM STATION U 772. SE, SW, SW, NE, NW, SEC 5, T14S, R15E.
DE5827	20021119	G	NGS	DW	USGS MAGENTIC OBSERVATORY HAS BEEN ABANDONED AND SITE IS NOW UNDER CONTROL OF CITY OF TUCSON AS PART OF MORRIS UDALL PARK.
DE5827	20041220	G	NGS	DW	MARK IS 1.6 M ESE OF NEW WITNESS POST.
DE5827	20110521	G	NGS	DW	BLDGS. OF OBSERVATIONS AREA OF FORMER MAGNETIC OBSERVATORY HAVE BEEN REMOVED, SAVE FOR A FEW PILLARS. AND AREA IS NO LONGER FENCED OFF. MARKS IS JUST SOUTH OF NEAR MIDDLE OF PARKING LOT ON SOUTH SIDE OF BALL FIELDS. WOODEN POLE REMAINS AS WELL AS WITNESS POST.