Task Difficulty: 1.5 Out of 5.0
Terrain Difficulty: 1.5 Out of 5.0
Statystyka skrzynki
Patuxent Branch Geo(logy)cache - OU032A

 The Site of This Earth-focused Cache May be Familar to Some

Hidden by  DudleyGrunt

N 39° 09.937' W 76° 50.455' (WGS84)

 Coordinates in Other Systems
 Location: United States > Maryland
 Cache Type: Virtual
 Size: No container
 Status: Ready for Search
 Date Hidden: 13 September 2011
 Date Created: 13 September 2011
 Last Modified: 31 March 2016
 Waypoint: OU032A


{{found}} 4 x Found
{{not_found}} 0 x Did Not Find
{{comment}} 0 Comments
0 Notes
0 Watchers
2950 Visitors
3 x Rated
Rated as: Excellent
GeoKrety History

Available Maps: Opencaching,Google Maps

Cache Attributes

Quick Cache Kid Friendly Wheelchair Access Available in Winter In the Woods Historic Site Limited Hours Listed on OCNA Only 

Please see the attributes article for more information.

Description   EN   

PLEASE NOTE: Depending on the time of day / week and which way you choose to approach, there may be construction in the general area. Be smart and careful.  Also, please only visit between sunrise and sunset.

This Virtual Cache will bring you to the Patuxent Branch Trail, located in the Guilford area of Howard County. You will find several informational signs that may help you answer the questions below.

River Facts:

  • The Little Patuxent River begins in Howard County near Alpha Ridge, is joined by the Middle Patuxent near Savage, and continues south to the Patuxent River near Crofton.
  • The total length of the the Little Patuxent River is 45, 25 of which is in Howard County.
  • The median daily flow at Guilford is 44 cubic feet per second.
  • The greatest flow at Guilford was during Huricane Agnes in 1972 at 12,400 cubic feet per second.
  • The average depth of the river at Guilford is 2.5 feet.
  • The highest flooking at Guilford was 18.38 feet during Hurricane Agnes.

What is a Watershed?

The total land area that cathes rain and drains it to a specific body of water is called a watershed. It is similar to a basin that catches water, and then pours it into a larger basin. Each small stream or tributary has its own watershed, which is part of a larger watershed of a bigger body of water.

Nature, not Man defines the boundaries of a watershed. This site is part of the Little Patuxent River Watershed. This watershed is part of the even bigger Patuxent River Watershed, and that is part of the far greater Chesapeake Bay Watershed.

Watersheds are important to the health of the body of water that they supply, and that, in turn, affects the total environment.  Everything that contaminates the water in a watershed can pollute the river or lake at the end of its journey. A drop of water falling in Guilford will find its way to the Chesapeake Bay.

What is the "Fall Line"?

As rivers flow from the higher Piedmont Plateau to the lower Coastal Plain in Maryland, their descent creates many waterfalls and rapids. This edge which generally follows I-95, has long been called the Fall Line. It marks the point where upstream navigation becomes difficult and the energy of the falling water can be harnessed to power mills and factories. Often the water has carved a narrow gorge through the harder rocks. Between Guilford and Savage, the river drops nearly 60 feet.

A Bonus

Also located at the listed coordinates, you will find a 1902 Guilford Pratt Truss B&O railroad bridge.  It has been restored and now used a pedestrian crossing for the Patuxent Branch Trail.

To claim credit for this cache, please send me the answers to the following questions:

1) What is the origin of the word "Patuxent"?

2) What percentage of land on Earth is part of a watershed?

3) What did the fall line provide the mills?

4) What was quarried in Guildford starting in the 1830's?

5) Give a short description of this substance (as described on one of the informational signs).

Finally, you must visit the site in person and upload an image of you and / or your GPS taken at a recognizable location at the site which offers clear visual proof of your visit.

Maryland Geocaching Society

Military Association of GeoCachers

GeoCachers 4 Christ


Find caches nearby on OCNA (radius 100 mi): All  Searchable   
Find Geocaches on:   

When downloading this file, you accept our Terms of Use.

Log Entries    {{found}} 4x {{not_found}} 0x {{comment}} 0x      New Log Entry

1 30 March 2016 ithink314 Found it

Did the reading, sent answers, will upload a pic soon. Interesting location, and after this I enjoyed a hike up the road/trail, and did some off-trail bushwhacking too.

### **Thanks, DudleyGrunt, for setting this up!** ### +/- 64 @ March 30, 2016 18:31.

Pictures Connected with this Log Entry:
On the bridge
On the bridge

1 08 February 2012 nighthawk700 Found it

I've been here before, for several different caches.  In fact I did a previous iteration of this cache, but the questions are different (because I really had to hunt for one answer!) so I don't feel too guilty about logging this on

I'll be sending the answers to the cache owner.  Thanks for bringing me back on a nice cold snowy day.  :-) 


Pictures Connected with this Log Entry:
Nighthawk700 at the bridge.
Nighthawk700 at the bridge.

1 17 September 2011 sfcchaz Found it

STF - I have also completed other caches at this location previously.

After completing about 10 miles at Sugarloaf Mountain, I thought what's a couple more miles anyway? So I came out to get the new OCUS caches in Savage Park and here. TFTC

Pictures Connected with this Log Entry:
sfcchaz at Patuxent Branch Geo(logy) Cache
sfcchaz at Patuxent Branch Geo(logy) Cache

1 14 September 2011 dadgad Found it

I found this when it was listed on another site.  However, this was one of my favorite places to bike to, or to hike when I lived in Columbia.  Thanks!