Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Water Data and Tools

NHDPlusV1 Colorado Data

You may need additional software to view some of the links on this page. See EPA’s Free Viewers and Readers page.The links will vary in file size.
colorado

Colorado (Hydrologic Regions 14 and 15)

The Colorado drainage area is composed of hydrologic regions 14 and 15.

The Colorado hydrologic regions are further divided into production units: 14 a and b and region 15 a and b.

NHDPlus Shapefile and DBF components are distributed by hydrologic region.

NHDPlus ESRI Grid components are distributed by production units.

For more information please see Region 14 Release Notes (DOC)(3 pp, 48 K) or Region 14 Release Notes (PDF)(3 pp, 16 K, About PDF).

For more information please see Region 15 Release Notes (DOC)(5 pp, 477 K) or Region 15 Release Notes (PDF)(5 pp, 84 K).

The following links exit the site

FILENAME KEY

NHDPlusrrVnn_componentname.zip
where:

  • rr is the hydrologic region number
  • nn is the currently available version of the data
  • componentname describes the content of the zip file
File Description File Name (.zip) Format
Region 14 , Version 01_01, Catchment Grid NHDPlus14V01_01_Catgrid ESRI Grid
Region 14, Version 01_01, Catchment Shapefile NHDPlus14V01_01_Catshape Shapefile
Region 14, Version 01_03, Catchment Flowline Attributes NHDPlus14V01_03_Cat_Flowline_Attr DBF
Region 14, Version 01_02, Elevation Unit a NHDPlus14V01_02_Elev_Unit_a ESRI Grid
Region 14, Version 01_02, Elevation Unit b NHDPlus14V01_02_Elev_Unit_b ESRI Grid
Region 14, Version 01_02, Flow Accumulation and Flow Direction Unit a NHDPlusV1401_02_FAC_FDR_Unit_a ESRI Grid
Region 14, Version 01_02, Flow Accumulation and Flow Direction Unit b NHDPlus14V01_02_FAC_FDR_Unit_b ESRI Grid
Region 14, Version 01_01, National Hydrography Dataset NHDPlus14V01_03_NHD Shapefile and DBF
Region 14, Version 01_01, QAQC & Sinks Spreadsheet NHDPlus14V01_01_QAQC_Sinks Excel Spreadsheet
Region 14, Version 01_01, Stream Gage Event NHDPlus14V01_01_StreamGageEvent DBF
Region 15, Version 01_01, Catchment Grid NHDPlus15V01_01_Catgrid ESRI Grid
Region 15, Version 01_01, Catchment Shapefile NHDPlus15V01_01_Catshape Shapefile
Region 15, Version 01_03, Catchment Flowline Attributes NHDPlus15V01_03_Cat_Flowline_Attr DBF
Region 15, Version 01_02, Elevation Unit a NHDPlus15V01_02_Elev_Unit_a ESRI Grid
Region 15, Version 01_02, Elevation Unit b NHDPlus15V01_02_Elev_Unit_b ESRI Grid
Region 15, Version 01_02, Flow Accumulation and Flow Direction Unit a NHDPlus15V01_02_FAC_FDR_Unit_a ESRI Grid
Region 15, Version 01_02, Flow Accumulation and Flow Direction Unit b NHDPlus15V01_02_FAC_FDR_Unit_b ESRI Grid
Region 15, Version 01_01, National Hydrography Dataset NHDPlus15V01_03_NHD Shapefile and DBF
Region 15, Version 01_01, QAQC & Sinks Spreadsheet NHDPlus15V01_01_QAQC_Sinks Excel Spreadsheet
Region 15, Version 01_01, Stream GageEvent NHDPlus15V01_01_StreamGageEvent DBF

Water Data and Tools

  • Integrated Water Analysis
  • Ambient Water Quality
  • Community Financing
  • Drinking Water
  • Water Restoration
  • Water Quality Models
Contact Us About Water Data and Tools
Contact Us About Water Data and Tools to ask a question, provide feedback, or report a problem.
Last updated on October 8, 2024
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.