Econlockhatchee River

{{short description|River in Osceola, Florida}}

{{Use American English|date=February 2025}}

{{Infobox river

| name = Econlockhatchee River

| image = Econlockhatchee River from the Florida Trail bridge.jpg

| image_caption = Econlockhatchee River from the Florida Trail bridge

| map =

| map_size =

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| name_native =

| name_native_lang =

| name_other = Econ River

| source1_location = Lake Conlin
north of Holopaw

| source1_coordinates= {{coord|28|14|29|N|81|6|31|W|name=Lake Conlin, source of Econlockhatchee River}}

| mouth_location = St. Johns River
near Puzzle Lake

| mouth_coordinates = {{coord|28|42|13|N|81|1|42|W|name=Mouth of Econlockhatchee River at Saint Johns River|display=inline,title}}

| progression = Ecolockhatchee - Saint Johns River - Atlantic Ocean

| subdivision_type1 = Country

| subdivision_name1 = United States

| subdivision_type2 = Location

| subdivision_name2 = Central Florida

| name_etymology = "Rivers of mounds"

| length_km = 87.7

| source1_elevation = {{convert|92|ft}}[http://www.trails.com/topo.aspx?lat=28.243&lon=-81.1076&s=50&size=s&style=drgsr "Holopaw Topo Map at Lat 28.243°N Long -81.1076°W Zoom 15 S Size"]. Trails.com. Retrieved on 2014-08-04.

| mouth_elevation = {{convert|3|ft}}[http://www.trails.com/topo.aspx?lat=28.7035&lon=-81.028&s=50&size=s "Geneva Topo Map at Lat 28.7035°N Long -81.028°W Zoom 15 S Size"]. Trails.com. Retrieved on 2014-08-04.

| discharge1_avg =

| basin_size = {{convert|173143|acre|km2}}

| river_system = Saint Johns River

| tributaries_left = Disston Canal, Turkey Creek, Little Econlockhatchee River

| tributaries_right =

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The Econlockhatchee River (Econ River for short) is an {{convert|87.7|km|mi|sp=us|adj=mid|-long|order=flip}}U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. [http://viewer.nationalmap.gov/viewer/ The National Map] {{webarchive|url=https://web.archive.org/web/20120329155652/http://viewer.nationalmap.gov/viewer/ |date=2012-03-29 }}, accessed April 21, 2011 north-flowing blackwater tributary of the St. Johns River. The Econ River flows through Osceola, Orange, and Seminole counties in Central Florida, just east of the Orlando Metropolitan Area (east of State Road 417). It is a designated Outstanding Florida Waters.(2013-01-02). [http://sjrwmd.com/middlestjohnsriver/econriver.html "Econlockhatchee River"]. Saint Johns River Water Management District. Retrieved on 2014-08-04.

The origin of the river's name is not known definitively. In 1839 the spelling was recorded as “Econ-like Hatchee”. It is theorized that this represents a Muscogee name meaning “earth-mound stream”, with “econ-like” coming from ēkvnv (/iːkaná/), ‘earth, land’, and like (/léyki/), ‘sitting’, plus hvcce (/háčči/), ‘stream’.{{cite book|last=Bright|first=Bright|title=Native American Placenames of the United States|url=https://books.google.com/books?id=5XfxzCm1qa4C&pg=PA140|year=2004|publisher=University of Oklahoma Press|isbn=978-0-8061-3598-4|page=140}}

The river flows north from its source, Lake Conlin, through the Econlockhatchee River Swamp (see below) south of State Road 528. Near the City of Oviedo, the tributary Little Econlockhatchee River joins, and the river turns east as it flows through the Little Big Econ State Forest. The Econlockhatchee joins the St. Johns River near Puzzle Lake. The river's floodplain is forested for its entire length.