USGS banner and link to home page

Debris Flows along the Interstate 70 Corridor, Floyd Hill to the Arapahoe Basin Ski Area, Central Colorado - A Field Trip Guidebook

By Jeffrey A. Coe, Jonathan W. Godt, and Alan J. Henceroth

Debris Flow on Interstate 70 Corridor

U.S. Geological Survey Open-File Report 02-398

Version 1.0
Part or all of this report is presented in Portable Document Format. The latest version of Adobe Acrobat Reader or similar software is required to view it. If you wish to download the latest version of Acrobat Reader free of charge, click here.

OFR-02-398 PDF file (3.2 MB)
(This version of the report is accessible as defined in Section 508.)

OFR-02-398 PDF file (6.1 MB)

This report presents a field guide to debris flows along the Interstate 70 corridor in the Front Range of Colorado. The setting of the field-trip area is described, followed by a detailed road log that includes descriptions for each of 10 field-trip stops. Most of the stops are at fans adjacent to Interstate 70. Stop descriptions focus on the origins of fan deposits, radiocarbon dating and debris-flow recurrence intervals, debris-flow initiation process, drainage-basin morphology, and debris-flow hazards. logo