National Geologic Map Database
General Information
- Title: Flow modification in the Nation’s streams and rivers
- Author(s): Carlisle, D.M., Wolock, D.M., Konrad, C.P., McCabe, G.J., Eng, Ken, Grantham, T.E., and Mahler, Barbara
- Publishing Organization: U.S. Geological Survey
- Series and Number: Circular 1461
- Publication Date: 2019
- Map Scale: 1:27,150,000
- Cross Section: None
- North Latitude: 49° 0' 0" N (49.0000)
- South Latitude: 25° 0' 0" N (25.0000)
- East Longitude: 67° 0' 0" W (-67.0000)
- West Longitude: 124° 45' 0" W (-124.7500)
- Corrections to this entry?
* See base map disclaimer below.
External Resources
- Links and Downloads:
- Publication
- For more information, please contact:
- U.S. Geological Survey
- USGS Information Services
- Box 25286
- Denver, CO 80225
- Phone: (303) 202-4700 or 1-888-ASK-USGS
- Fax: (303) 202-4710
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.