Reference

All functions
bbox2poly()	Convert a bounding box to polygon
extract_network()	Return nhd plus stream network upstream of a waterbody
find_vpu()	Find VPU
great_lakes()	Data and spatial polygons of the Great Lakes
gull	List of simple features lake polygons and flowlines within a buffer around Gull Lake Michigan.
gull_flow	Flowlines within a buffer around Gull Lake Michigan including flow information.
leaf_reaches()	Return leaf reaches from a network or query intersecting lake
mendota	List of simple features lake polygons and flowlines within a buffer around Lake Mendota.
mendota_network	Upstream flowlines connected to Lake Mendota.
nhdR-package	R interface to the National Hydrography Dataset
nhd_get()	Download and cache NHD data by state
nhd_info()	Return NHD layer metadata and field listing
nhd_list()	List available locally cached NHD layers per state
nhd_load()	Load NHD layers into current session
nhd_plus_get()	Download and cache NHDplus data by vector processing unit
nhd_plus_info()	Return NHDplus layer metadata and field listing
nhd_plus_list()	List available locally cached NHDplus layers per state
nhd_plus_load()	Load NHDplus layers into current session
nhd_plus_query()	Select NHDplus features via polygon or circular buffer of coordinate pair
nhd_query()	Select NHD features clipped by a circular buffer a coordinate pair
select_point_overlay()	Select features clipped by a point buffer around a point
select_poly_overlay()	Select features clipped by a polygon
sunapee	List of simple features lake polygons and flowlines within a buffer around Lake Sunapee.
sunapee_network	Upstream flowlines connected to Lake Sunapee.
terminal_reaches()	Return terminal reaches from collection intersecting lake
tip_reaches()	Return tip reaches from a network
toUTM()	Re-project to appropriate UTM zone
vpu_shp	Low-res simple features data frame of the NHDPlus vector processing units