hydrology news

A screenshot of the Rapids Application showing three of the ten total red rectangles that represent the rapids along the Colorado River within the Grand Canyon. Black and white topography that visualizes the stunning canyon walls and landscapes are seen, with the blue of the Colorado River running left to right in the center of the image. A descriptive box is open for the rightmost of the three.

New Web Index: 1988 Hydraulic Maps of Major Grand Canyon Rapids

Our latest web index, 1988 Hydraulic Maps of Major Grand Canyon Rapids, is now live and available to the public. Geographic Coverage: Arizona Date: 1988 Scale: 1:1,000 Physical Availability: in-house only Digital Availability: scanned (600 dpi) This application depi...

New Web App: Western North America Vegetation and Locust Map

Our latest web app, Western North America Vegetation and Locust Map, is now live and available to the public. Map of a Portion of Western North America Showing the Distribution of Vegetation with Reference to the Multiplication of and Means o...