National Geodetic Survey

Historical text in data base for PID(s):

DE5834

PID	Report Date	COND	AGENCY	COP	TEXT
DE5834	1937	S	CGS	*	*
DE5834	19980721	G	NGS	DW	OTHER ALIASES INCLUDE IGB 12020, NN 223 AND U 772. STATION IS AT ABANDONED USGS TUCSON MAGNETIC OBERVATORY 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 KOLB 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 GATE TO OLD HOUSE/OFFICE AREA. STATION IS ON N OF TWO PIERS IN CENTER OF OBSERVATION AREA, 98 M (321.5 FT) E OF S RESIDENCE, 25 M (82.0 FT) N OF E SEISMIC VAULT, 27.0 M (88.6 FT) N OF W SEISMIC VAULT, 24.0 M (78.7 FT) S OF WOOD SLAT BUILDING, 90.6 M (297.2 FT) NW OF RM MAGNETIC AZIMUTH NO 3, 1.37 M (4.49 FT) N OF TUCSON A AND 1.43 M (4.69 FT) NE 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, SW, SEC 5, T14S, R15E.
DE5834	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.
DE5834	20041220	G	NGS	DW	MARK IS 1.6 M ENE OF NEW WITNESS POST.
DE5834	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.