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Description: Tools for traversing and working with National Hydrography Dataset Plus (NHDPlus) data. All methods implemented in 'nhdplusTools' are available in the NHDPlus documentation available from the US Environmental Protection Agency <https://www.epa.gov/waterdata/basic-information>.
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Description: Tools for traversing and working with National Hydrography Dataset Plus (NHDPlus) data. All methods implemented in 'hydrogeofetch' are available in the NHDPlus documentation available from the US Environmental Protection Agency <https://www.epa.gov/waterdata/basic-information>. Previously published as 'nhdplusTools'.
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hydrogeofetch 2.0.0
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==========
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`hydrogeofetch` is the renamed successor to `nhdplusTools`. The package scope has grown beyond NHDPlus, and the new name reflects its broader role as a hydrologic geospatial data access and network tool chain. `nhdplusTools` will remain on CRAN as a deprecation shim until October 2028.
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## New features
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- New `add_mainstems()` joins geoconnex mainstem identifiers onto a table containing NHDPlusV2 (comid/featureid) or NHDPlusHR (nhdplusid) identifiers, using a cached lookup table from the [ref_rivers](https://github.com/internetofwater/ref_rivers) release. #469
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- New `check_mainstems()` checks whether mainstem identifiers have been superseded by a newer reference release; new `update_mainstems()` re-indexes points with a known mainstem id onto its replacement using `hydroloom::index_points_to_lines()`. #470
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## Removed functions (moved to hydroloom)
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Network analysis and spatial indexing functions that duplicated [hydroloom](https://doi-usgs.github.io/hydroloom/) have been removed. Users should call hydroloom directly. See the [hydroloom reference](https://doi-usgs.github.io/hydroloom/reference/) for full documentation, especially the [indexing](https://doi-usgs.github.io/hydroloom/reference/index.html#indexing-and-linear-referencing) and [navigation](https://doi-usgs.github.io/hydroloom/reference/index.html#network-navigation-and-accumulation) sections.
-`get_UM()`, `get_DM()` → `hydroloom::navigate_hydro_network(x, start, "UM")` / `"DM"` (note: the old wrappers also ran `align_nhdplus_names`, filtered, and supported `sort`/`include` arguments)
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-`navigate_network()` — workflow glue; use `navigate_nldi()` + `subset_nhdplus()` or hydroloom navigation directly
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