Available data

Select data types to graph from categories based on the way the data were collected.

2 data types available - data from 1988-09-30 to 2026-08-11

3 data types available - data from 1977-05-30 to 2026-08-09

2 data types available - data from 1973-06-06 to 2026-07-18

53 Observed properties (data types) available - with data from 1977-11-04 to 2011-09-21

394 Sampling activities

2 data types available - with data from 1977-09-15 to 2023-10-10

3 data types available - data from 1977-05-30 to 2026-08-09

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	16854500	n/a
Location name	Ugum River above Talofofo Falls, nr Talofofo, Guam	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	13.3224166666667	n/a
Decimal longitude (WGS84)	144.736138888889	n/a
Latitude-longitude method	Mapping grade GPS unit (handheld accuracy range 12 to 40 ft)	G
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	Hawaii	15
State	Guam	66
County	Guam	010
Country	United States of America	n/a
Altitude of gage/land surface	130 feet	n/a
Method altitude determined	Interpolated from topographic map.	M
Altitude accuracy	10 feet	n/a
Altitude datum	Local Mean Sea Level	LMSL
Subbasin hydrologic unit	Guam	22010000
Drainage basin		n/a
Date of first construction		n/a
Drainage area	5.92 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	GST	n/a
Site honors Daylight Saving Time	N	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a