The clear water was prime for seeing the bedrock on the channel bottom, but this was a holiday float, not a research trip. The North Anna River flows for ~100 km (60 miles) across the north-central Virginia Piedmont before joining the South Anna River to form the Pamunkey River, a Coastal Plain tributary of the York River. Privacy Add up to 2 more sites and replot for "Discharge, cubic feet per second", Add up to 2 more sites and replot for "Gage height, feet", Accessibility North Anna Battlefield Park encompasses 172 acres and over 6 miles of well-marked trails through oak-hickory forest. What is a North Anna River is in the Streams category for Hanover County in the state of Virginia. Typically, Lake Anna releases a constant flow for days on end, and thus the downstream flow is easily determined. The mill was constructed against cliffs of the Mesoproterozoic State Farm Gneiss. Although the North Anna River had risen, there’d been no significant precipitation in central Virginia during the past few days. update often so that you have the most current version. Hydrograph for the North Anna River at Hart’s Corner, Virginia on May 22 – 23, 2020. The North Anna River has incised ~30 to 35 meters (100 – 115 feet) creating steep slopes and cliffs along the edge of the valley. The North Anna gage at Partlow (just below Lake Anna) is 48 km upstream from the gage at Hart’s Corner. Approx. rating table. The latitude and longitude coordinates of North Anna River are 37.8034747, -77.4077593 and the approximate elevation is 39 feet (12 meters) above sea level. Feature Type: Stream. Based on the average flow rate, the surge took ~9 hours to reach Butler’s Bridge, arriving round about midnight. Uplands are gently sloped and underlain by Cenozoic sand and gravel deposits. Our wildlife sightings were far greater than our people sightings. The river was discharging ~360 cubic feet of water per second (cfs) and at this flow rate we’d have plenty of water for our holiday canoe trip. Our destination was the Fall Zone stretch of the North Anna River, it’s one of my favorite day trips. In the Fall Zone, the river drops ~25 m in a 10-kilometer reach and consequently there are numerous rapids that range from gentle Class I riffles to a bruising Class IV drop.

2; Oblique view (to the southeast) of a digital landscape representation at Jericho Mill. URL: https://waterdata.usgs.gov/nwis/uv? Required fields are marked *. View to the east of Jericho Mill and the Union pontoon bridge across the North Anna River in May 1864 (photo by Timothy O’Sullivan). Coordinates: 37.8034747°N, -77.4077593°W USGS 01671020 NORTH ANNA RIVER AT HART CORNER NEAR DOSWELL, VA. Our pleasant passage down the river would not have been possible the next day. Highlights from the vertebrate realm included muskrats, northern watersnakes, osprey, and bald eagles. U.S. Geological Survey While Hancock remains on the north side of the North Anna River, he is in perfect position to cross the river the following day. In the Fall Zone, the underlying geology dictates the topography, the terrain, and the character of the river itself – all of which played a significant role in the Battle of the North Anna. Policies and Notices, U.S. Department of the Interior | I had gotten the arrival time of the surge wrong for the stretch of river we were floating. Note the dark brown, non-vegetated slope just above the waterline that was covered with the North Anna’s waters just a few hours prior to our float trip. After dissecting the river gage data and shifting the time of the peak flows, I estimate that the North Anna was flowing between 220 and 160 cfs during our 4-hour float trip. With To the North Anna River, the third book in his outstanding five-book series, Gordon C. Rhea continues his spectacular narrative of the initial campaign between Ulysses S. Grant and Robert E. Lee in the spring of 1864. Warning: Javascript must be enabled to use all the features on this page! I’d misjudged the timing of the surge because I focused too much on the Hart’s Corner gage and ignored the upstream timing of the pulse. Jericho Mill was built upon a foundation of granitic gneiss, we now know that the rock originally crystallized as a plutonic igneous rock just over a billion years ago, only to be later metamorphosed and deformed in the late Paleozoic and then rapidly exhumed in the Triassic. Grant found the Confederates entrenched on the south side of the North Anna River, where Lee's "inverted V" defenses forced Grant to divide his forces into three parts to attack.
The North Anna River was falling once again, and our float trip was taking place after the surge. Some of the rapids were ‘boney’, that is, too much rock was exposed and there was not enough water to float a canoe in some spots.

Professor Jennifer Bickham Mendez considers the first riffles on the North Anna River. Although the lower reaches of the North Anna are free-flowing, its discharge is strongly influenced by water releases from Lake Anna, an artificial reservoir that covers 53 km2 in the middle part of the watershed. May 24, 1864, 3 p.m. - After crossing the North Anna River, Union general John Gibbon's men on the Union left wing encounter a line of well-defended Confederate trenches near Hanover Junction. A classic example is the Colorado River downstream from both the Glen Canyon and Hoover dams. The overlaid discharge curves below indicate a lag time between Partlow and Hart’s Corner of ~18 hours (from which an average flow velocity of ~2.7 km/hour can be estimated). If you have visited North Anna River before, please tell us about it with a comment below. North Anna Ramp 17600 Washington Highway Map it Doswell, VA 23047 Located at the Hanover/Caroline County line on Route 1 South Anna Ramp (Ground Squirrel Bridge Ramp) 15008 Mountain Road Map it Glen Allen, VA 23059 Located at the intersection of the South Anna River and Mountain Rd. Page Contact Information: Virginia Water Data Support Team Note the cleared land along the river bottom, today this area is completely swathed in forest. Our put-in point is 25 km downstream from Lake Anna and nearly halfway between the two stream gages. Find our, Introducing The Next Generation of USGS Water Data for the Nation. Water released from reservoirs is sediment-poor because most of the incoming sediment delivered to a reservoir settles out before the water is released downstream.

Downstream from Lake Anna, the North Anna River experiences a similar phenomenon. 7 oz. At 7 a.m., the U.S. Geological Survey gage at Hart’s Corner dutifully showed that the North Anna had risen by nearly 50 cm (20”) during the past six hours. If you use these ratings, it is important that you shift adjusted stage-discharge rating? Beautiful and informative. Falling waters aside, we had an awesome day on the North Anna River. Mar 15, 2015 - North Anna River. shift adjusted stage-discharge rating? So, what’s up with the North Anna River? A northern watersnake reposing on a rock.

Anyone who is interested in visiting North Anna River can print the free topographic map and street map using the link above. This stretch of the river also bore witness to a bloody and useless battle between Union and Confederate troops during the 1864 Overland Campaign. National Water Information System: Web Interface. Over the past three years the W&M Structural Geology & Tectonics group has renewed our geological research in this area and obtained a bevy of new age isotopic dates. Jan 18, 2018 - North Anna River. CZ strata- Cenozoic strata of the Coastal Plain, SZ – Spotsylvania Zone (a major high-strain zone in the Piedmont), T-ville Basin – Taylorsville Mesozoic basin. The North Anna waters continued to fall throughout the Memorial Day holiday, bottoming out at gnarly low flow of ~85 cfs. Map of the North Anna River basin in north-central Virginia. To the North Anna River: Grant and Lee, May 13–25, 1864 - Kindle edition by Rhea, Gordon C.. Download it once and read it on your Kindle device, PC, phones or tablets.
The river was still falling at midnight, yet I went to bed confident that the North Anna River would be on the rise by morning. Thanks, Your email address will not be published. When it rains, rivers rise and without the runoff from precipitation rivers typically fall. Largemouth Bass with a shake head. Save my name, email, and website in this browser for the next time I comment. At 7 a.m., the U.S. Geological Survey gage at Hart’s Corner dutifully showed that the North Anna had risen by nearly 50 cm (20”) during the past six hours. The bank of the North Anna River with thickets of blooming mountain laurel. USGS Topo Map Quad: Ashland Flowing water is restorative force, even more so in a world of never-ending Zoom meetings and too much screen time. The park offers two hiking trails, the Blue Trail (3.8 miles down-and-back) and the Gray Trail (2.04 miles down-and-back). It’s also a scenic and historic float trip, as the North Anna River is far from the madding crowd with the forest reaching to the rivers’ edge.


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