Available data

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

5 data types available - data from 1985-10-01 to 2026-08-08

3 data types available - data from 1979-10-01 to 2026-08-07

2 data types available - data from 1980-06-19 to 2026-07-21

137 Observed properties (data types) available - with data from 1979-10-04 to 2013-09-07

265 Sampling activities

2 data types available - with data from 1980-06-19 to 2025-06-03

3 data types available - data from 1979-10-01 to 2026-08-06

Zoom out to see link to My Favorites

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	09073300	n/a
Location name	ROARING FORK RIVER AB DIFFICULT C NR ASPEN, CO.	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	39.141111	n/a
Decimal longitude (WGS84)	-106.773611	n/a
Latitude-longitude method	Interpolated from map	M
Latitude-longitude accuracy	Accurate to + or - 5 sec.	F
District	Colorado	08
State	Colorado	08
County	Pitkin County	097
Country	United States of America	n/a
Altitude of gage/land surface	8124.23 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.1 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Roaring Fork	14010004
Drainage basin	09	n/a
Date of first construction		n/a
Drainage area	75.8 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	MST	n/a
Site honors Daylight Saving Time	Y	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

Monitoring location Roaring Fork River AB Difficult C NR Aspen, Co. - USGS-09073300