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Found 14 datasets matching filters.

  • #1 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 2 | Published on: 2026-01-27
  • #2 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 2 | Published on: 2026-01-27
  • #3 City

    This dataset is a complete digital hydrologic unit boundary layer to the subwatershed (12-digit) 6th level at 1:24,000 scale. This data set consists of geo-referenced digital data and associated...

    Search relevance: 1.00 | Views last month: 2 | Published on: 2026-01-27
  • #4 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27
  • #5 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27
  • #6 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27
  • #7 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27
  • #8 Federal

    This dataset is the digital hydrologic unit boundary layer for the 8-digit subwatershed boundaries for the conterminous United States. This dataset is intended to be used with the following two...

    Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-07
  • #9 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27
  • #10 Federal

    This EnviroAtlas web service contains layers depicting hydrologic unit boundary layers and labels for the Subregion level (4-digit HUCs), Subbasin level (8-digit HUCs), and Subwatershed level...

    Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27
  • #11 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27
  • #12 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-27
  • #13 Federal

    This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the entire United States. This data set consists of geo-referenced digital data and...

    Search relevance: 1.00 | Views last month: 0 | Published on: 2026-01-27
  • #14 State

    Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...

    Search relevance: 1.00 | Views last month: 0 | Published on: 2026-01-27

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