Anatomy of a Tidal Marsh

Anatomy of a Tidal Marsh (HM21Z3)

Location: Alexandria, VA 22307 Fairfax County
Buy Virginia State flags at Flagstore.com!
Country: United States of America
Buy United States of America flags at Flagstore.com!

N 38° 46.218', W 77° 2.989'

  • 0 likes
  • 0 check ins
  • 0 favorites
  • 298 views
Inscription

George Washington Memorial Parkway

Your body has a heart and blood vessels to carry nutrients to your tissues, lungs to breathe, kidneys to filter out pollutants, and skin to protect you. When you look closely at Dyke Marsh, you can find natural systems that do all the same things.

Circulate

Purple and blue on this map show the winding channels of the marsh, called guts, and the Potomac River. Tides pump Chesapeake Bay saltwater up the Potomac River and into the marsh. There it mixes with fresh water, nutrients and sediments.

Filter
Green plants act like kidneys, filtering pollution from the water. Marsh plants also slow down the movement of sediments, produce oxygen, and capture nitrogen.

Protect
Wetland forests, shown here as the mixed mosaic of green, yellow, and blue at the left, act like a protective skin. They anchor the shoreline and reduce erosion, sheltering Dyke Marsh and the people who live nearly.
Details
HM NumberHM21Z3
Tags
Placed ByNational Park Service, U.S. Department of the Interior
Marker ConditionNo reports yet
Date Added Sunday, October 1st, 2017 at 7:03am PDT -07:00
Pictures
Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.
Locationbig map
UTM (WGS84 Datum)18S E 321922 N 4293282
Decimal Degrees38.77030000, -77.04981667
Degrees and Decimal MinutesN 38° 46.218', W 77° 2.989'
Degrees, Minutes and Seconds38° 46' 13.08" N, 77° 2' 59.34" W
Driving DirectionsGoogle Maps
Area Code(s)703
Closest Postal AddressAt or near Dyke Marsh Trail, Alexandria VA 22307, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

Is this marker missing? Are the coordinates wrong? Do you have additional information that you would like to share with us? If so, check in.

Nearby Markersshow on map
Check Ins  check in   |    all

Have you seen this marker? If so, check in and tell us about it.

Comments 0 comments

Maintenance Issues
  1. Is this marker part of a series?
  2. What historical period does the marker represent?
  3. What historical place does the marker represent?
  4. What type of marker is it?
  5. What class is the marker?
  6. What style is the marker?
  7. Does the marker have a number?
  8. What year was the marker erected?
  9. This marker needs at least one picture.
  10. Can this marker be seen from the road?
  11. Is the marker in the median?