Seneca Historic District (Poolesville, Maryland)

{{short description|Historic district in Maryland, United States}}

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

{{Use mdy dates|date=August 2023}}

{{Infobox NRHP

| name = Seneca Historic District

| nrhp_type = hd

| nocat = yes

| image = Seneca Schoolhouse Museum.JPG

| caption = Seneca Schoolhouse Museum

| location = Southeast of Poolesville, Poolesville, Maryland

| coordinates = {{coord|39|5|28|N|77|20|48|W|display=inline,title}}

| locmapin = Maryland#USA

| built = {{Start date|1802}}

| architecture = Italianate, Georgian, Federal

| added = November 15, 1978

| area = {{convert|3850|acre}}

| refnum = 78001475{{NRISref|version=2010a}}

}}

The Seneca Historic District is a national historic district located at Poolesville, Montgomery County, Maryland. The district comprises {{convert|3850|acre}} of federal, state, and county parkland and farmland in which 15 historic buildings are situated. The Chesapeake and Ohio Canal, including Seneca Aqueduct (Aqueduct No. 1), Lock No. 24 (Riley's Lock), the adjacent lock house; as well as the Seneca Quarry and quarry masters house above the quarry also stand within the district and are also within Seneca Creek State Park.{{cite book|last=Peck|first=Garrett|title=The Potomac River: A History and Guide|year=2012|publisher=The History Press|location=Charleston, SC|isbn=978-1609496005|pages=62–63}} The 15 historic structures are surrounded by dependencies of various periods, in most cases dating from the period of the dwelling. There are slave quarters, smokehouses, springhouses, corn cribs, and tobacco barns.{{cite web|url=https://mht.maryland.gov/secure/medusa/PDF/NR_PDFs/NR-505.pdf |title=National Register of Historic Places Registration: Seneca Historic District|date=December 1975|accessdate=2016-01-01 |author1=Dorothy Muir |author2=Mary Ann Kephart |author3=Austin Kiplinger |name-list-style=amp |publisher=Maryland Historical Trust}}

It was listed on the National Register of Historic Places in 1978.