History UnderfootAtlanta

Still here · DeKalb County · Dam inventory GA01801

Howell Lake

A 10-acre lake behind a 22-foot earth dam in Stone Mountain Park, listed in federal dam records as owned by the Stone Mountain Memorial Association.

Fill it back up on the map Open its history on the map

Aerial photo of Howell Lake, 2005
2005
Howell Lake refilled from the lidar, shaded by depth
Refilled, best guess
Aerial photo of Howell Lake, 2026
2026
Lidar terrain shading around Howell Lake
Bare-earth lidar

Watermark

Howell Lake, full in 2005

Howell Lake was a long, narrow lake of about 9 acres behind a 300-foot earth dam, reaching roughly 5 feet deep in the measured basin. It looked like this in aerial photos from 1955 through 2005.

Today: Only the southern 4.5 acres still hold open water. The northern half is now a reed marsh with a small stream winding through it.

Area
8.7 acres
Deepest
about 5 ft
Method
Refilled from lidar
Checked against
2005 aerial

The old lakebed is still in the ground. The water was put back in the county’s lidar up to the old shoreline, with any broken dam patched, and checked against the 2005 aerial photo. The pool sat about 4 to 5 feet higher than today's water; why it dropped is unknown. Depth is a minimum, since the bed under today's pool is not measured. How Watermarks work.

From the air

Howell Lake was a 9-acre lake through 2005. By 2012 its north half was a reed marsh, and only about 4.5 acres of open water remain at the dam end.

First seen
The lake is already full in the 1955 aerial photo, ringed by unbroken forest.
Dam in the lidar
Earth dam at the south-southeast end, about 300 feet long and 20 to 22 feet high. The crest is a continuous ridge with no breach or notch. It sits about 10 feet above today's water. A pale stepped stone or concrete face on the downstream side, seen in 2012, has an unclear purpose.
Depth from the lidar
The 2024 county lidar shows today's smaller pool as flat water, so it gives no depth there. The north half is now marsh ground; at the old water level, about 860 feet, it held at most about 5 feet of water.

Low water and drawdowns

Read from aerial photos taken between 1940 and 2026 and from DeKalb County 2024 lidar, then checked by a second reading. How the photos were read.

History

Howell Lake is a small earth-dam lake in the western part of Stone Mountain Park, DeKalb County. The National Inventory of Dams lists Howell Lake Dam (GA01801) as 22 feet high and 300 feet long, with about 10 surface acres, 80 acre-feet of normal storage and recreation as its use. The owner is the Stone Mountain Memorial Association, the state authority that has run the park since Georgia bought the mountain in 1958. The NID completion year is 1950, an unverified field. Hazard is Low and condition Not Rated. No builder, naming history or rebuild record was found. 123

Who built it

Not documented. The NID gives the designer as unknown, the stream as unknown and the use as recreation. Its 1950 completion year, if accurate, would predate the state's 1958 purchase of Stone Mountain, but that date is unverified. Nothing found says who Howell was or who built the dam. 13

Timeline

  1. 1950 (NID year completed)NID lists the dam as completed in 1950. NID completion years are often estimates, and no construction record, plat or newspaper mention was found to confirm it. Uncertain 1
  2. 1958Georgia buys Stone Mountain for about $2 million, and the Stone Mountain Memorial Association becomes the park authority. Whether this lake's land was in that purchase or added later is not documented. 3
  3. 1989 (NID last inspection date)NID lists a last inspection date of 01/01/1989 on a 5-year inspection cycle. The January 1 date suggests a placeholder rather than a real inspection. Uncertain 1

The dam

NID: earth dam, 22 ft high (21 ft hydraulic height), 300 ft long, about 10 surface acres, 80 acre-feet normal and 100 acre-feet maximum storage, uncontrolled spillway and outlet. Hazard potential Low, condition Not Rated, emergency action plan not required, state-jurisdictional. Georgia agency ID 044-081-01106. Last inspection is listed as 01/01/1989, which looks like a placeholder. The record was last updated 04/20/2021. Drainage area is listed as 0 sq mi, another placeholder. NID labels the owner type 'Private' even though the named owner is a state authority. No rebuild or drawdown record was found. 13

Year in the inventory
1950
Dam height
22 ft
Surface
10 acres
Average depth
about 8 ft
Owner type
Private

Figures from the U.S. Army Corps of Engineers’ National Inventory of Dams. Its “year” is often a rebuild or survey date, and average depth is storage divided by area.

Around the lake

Water

NID lists the stream as Unknown and the drainage area as 0. The NHD reach code for the lake (03070103004178) places it in the Ocmulgee River basin, and NHD also maps a small pond named Catfish Pond about 350 m east at a lower elevation. Whether the two are connected is unverified.

Visiting

Getting there

NID and OpenStreetMap place the lake inside Stone Mountain Park, run by the Stone Mountain Memorial Association. Park entry for vehicles is charged per OSM tags, so confirm with the park. Whether the lake is open for fishing or boating is not documented. Stay on marked park trails.

What you can see

USGS National Map aerial imagery shows open water at the mapped spot, with a cleared area and gravel road beside it, woods around it, and the granite dome of Stone Mountain to the northeast. OpenStreetMap maps the Cherokee Trail (a walking path) passing at the dam's position. The dam's visible features are unconfirmed.

Look, don’t dig. Parks, cemeteries and preserves are off limits to digging and collecting, and private land needs the owner’s permission to enter.

Open questions

Know something? Write to hello@historyunderfoot.org. Family papers, photos and deeds often settle these.

Where to look next

Sources

  1. National Inventory of Dams, national CSV export (data updated 2026-09-23), record GA01801 Howell Lake Dam U.S. Army Corps of Engineers, National Inventory of Dams
  2. OpenStreetMap objects: Howell Lake Dam (way 1275448662, ref:US:NID GA01801), Howell Lake (way 1039920484, GNIS 358272 / NHD), Cherokee Trail, Stone Mountain Park boundary (relation 1447405) OpenStreetMap contributors (NHD/GNIS import)
  3. Stone Mountain (New Georgia Encyclopedia) Georgia Humanities / University of Georgia Press

Compiled September 2026 from the public record, with light archival coverage so far. How we know · Suggest a correction