{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "Downloaded from The National Map (USGS) October 3, 2018\nModified by Tuolumne County GIS: clipped to Tuolumne County Boundary and extracted ephemeral streams by type.\nExported April 2026 for use by Fehr & Peers on a trails inventory project through TCTC\n\nThe NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses establish the locations of these entities relative to one another within the NHD surface water drainage network, much like addresses on streets. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these water-related entities--and any associated information about them--can be analyzed using software tools ranging from spreadsheets to geographic information systems (GIS). GIS can also be used to combine NHD-based network analysis with other data layers, such as soils, land use and population, to help understand and display their respective effects upon one another. Furthermore, because the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all.", "description": "

The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "summary": "Downloaded from The National Map (USGS) October 3, 2018\nModified by Tuolumne County GIS: clipped to Tuolumne County Boundary and extracted ephemeral streams by type.\nExported April 2026 for use by Fehr & Peers on a trails inventory project through TCTC\n\nThe NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses establish the locations of these entities relative to one another within the NHD surface water drainage network, much like addresses on streets. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these water-related entities--and any associated information about them--can be analyzed using software tools ranging from spreadsheets to geographic information systems (GIS). GIS can also be used to combine NHD-based network analysis with other data layers, such as soils, land use and population, to help understand and display their respective effects upon one another. Furthermore, because the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all.", "title": "DBO.Hydrology", "tags": [ "FWHydrography", "Hydrography", "Stream / River", "Lake / Pond", "Canal / Ditch", "Reservoir", "Spring / Seep", "Swamp / Marsh", "Artificial Path", "Reach Code" ], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 150000000, "maxScale": 5000, "spatialReference": "", "accessInformation": "This dataset is provided courtesy of the County of Tuolumne, GIS Division. The County of Tuolumne cannot guarantee relatability or suitability of this information. Original data was compiled from a variety of sources, and the spatial information has variable accuracy. The dataset is subject to routine and occasional updating, correcting, and other modification without notification.", "licenseInfo": "

This dataset is provided courtesy of the County of Tuolumne, GIS Division. The County of Tuolumne cannot guarantee relatability or suitability of this information. Original data was compiled from a variety of sources, and the spatial information has variable accuracy. The dataset is subject to routine and occasional updating, correcting, and other modification without notification.<\/SPAN><\/P>

Use limitations<\/SPAN><\/P>

A. You understand and agree that it is possible that errors and omissions will occur in data input or programming done by Tuolumne County to provide that data. You further understand and agree that it is probable that errors and omissions will occur in the record keeping process, especially when a large number of records are developed and maintained, and that such data may not meet your standards as to accuracy or completeness. Notwithstanding, you agree to take the data \"as is\", fully expecting that there may be errors and omissions associated with the data.<\/SPAN><\/P>

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B. You further understand and agree that Tuolumne County makes absolutely no warranty whatsoever, whether expressed or implied, as to the accuracy, thoroughness, value, quality, validity, suitability, condition or fitness for a particular purpose of the data or any programming used to obtain the data, nor as to whether the data is error-free, up-to-date, complete or based upon accurate or meaningful facts.<\/SPAN><\/P>

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C. You further understand and agree that you forever waive any and all rights, claims, causes of action or other recourse against Tuolumne County for injuries or damages of any type, whether direct, indirect, incidental, consequential or otherwise, resulting from any error or omission in the data or in any programming used to obtain the data, or in any manner arising out of or related to the data retrieved herein. You agree that Tuolumne County shall not be liable to you for any liability, claim, loss, damage, injury or expense of any kind caused or alleged to be caused, directly or indirectly, by the inadequacy of data obtained from Tuolumne County, by any deficiency of Tuolumne County or your systems, by any delay or failure to provide service, or by any other interruption, disruption or loss to your operations.<\/SPAN><\/P>

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Indemnification:<\/SPAN><\/P>

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You agree not to provide a copy or partial copy of any data to any other party, including consultants under contract with you, without disclosing that the copy or partial copy was obtained from Tuolumne County and without attaching a duplicate of these Terms and Conditions.<\/SPAN><\/P>

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Only those parties which have been given or sold official copies of this data set by the County of Tuolumne are authorized to use it. Only those uses which have been defined by the requesting parties granted rights of use by Tuolumne County are authorized. This data set can not be used by additional parties, or used for resale, or further use by authorized parties beyond the uses clearly defined by the initial request. Use by any other parties or organizations is not sanctioned, and unauthorized or improper use could result in errors of assumption or conclusion that are beyond the control of Tuolumne County. <\/SPAN><\/P><\/DIV><\/DIV>", "portalUrl": "" }