PWFP-Eastern Coast Fall Line EarthCache
Hidden : 12/21/2008
Difficulty:
2 out of 5
Terrain:
2.5 out of 5

Size: Size: other (other)

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Geocache Description:


The Fall Line
The state of Virginia is divided into five main physiographic regions. From west to east, these regions are as follows:

Allegheny Plateau Valley and Ridge Blue Ridge Piedmont Coastal Plain

The Allegheny Plateau is a large plateau area on the far side of the Applachian Mountains. It's divided into unglaciated areas, which is heavy in shale, coal, and sandstone; and glaciated area which includes deposits from the last ice age.

The Valley and Ridge physiographic division is indicative of the long parallel ridges and valley. They are eroded remains of ancient mountains.

The Blue Ridge physiographic province is a ridge on the east side of the "Great Valley", which seperates it from the Valley and Ridge province. Most of rocky material are ancient granitic charnokites.

Piedmont is a plateau region which is characterized by relatively low, rolling hills. It has numerous rock formations of different materials. Most of Prince William Forest Park is within this region.

The Coastal Plain region is the area which is made of mostly of sedimentary deposits, and are easily eroded, leading to deeper rivers in this area.

These regions are classified by their physical landscapes. The majority of Prince William Forest Park is located in the Piedmont, though some of it occupies the transition zone between this region and its eastern neighbor, the Coastal Plain. This invisible contact between these two physiographic regions is known as the Fall Line and is characterized mainly by its change in topography as the hilly Piedmont downgrades into the Coastal Plain.

Below are the specific rock deposits that are on the surface in each part of the park. Do you notice where the Piedmont meets the Coastal Plain?

TEST


Take a walk down the North Valley Trail, and you'll learn how Quantico Creek flows across the "Fall Line". You'll learn more about the transition of regions when you visit 3 sites to get information to answer the questions below. Note: multiple questions can be answered at the same spot, and some questions are Opinion based. You are also required to post a picture of yourself (or some identifying feature), in front of the creek.

In order to get to the trail, park at the coordinates provided, which are also the base coordinates for this earthcache. Leave the parking lot going south, and find the Lake One Road. About a quarter mile, take a right on the Quantico Falls Trail. That trail will take you to the North Valley Trail. Please stay on the posted trails.

Emergency Dispatch Contact while at PWFPA is: 1-866-714-2250
An NPS entrance fee is required to enter the park, and the park is only open during daylight hours

Email me the answers to the questions below via my profile link above:

Question#1
The flat area that has an accumulation of sediments is called the ______________

Question#2
The Fall Line is between what two topographies here in Prince William National Forest Park?

Question#3
What specific formation (Specific Name) force the water of Quantico Creek to meander around the rocks of this formation at the Fall Line?

Question#4
In Quantico Creek, what has carved patterns in the rock?

Question#5
Opinion: Why do you think most cities on the East Coast are on the Fall Line?

Question#6
Opinion: Where do you live in relation to the Fall Line (east or west?), which extends the length of the Eastern Seaboard?

Additional Requirement
You must also take a picture of yourself(or equivalent) with Quantico Creek.

Additional Hints (Decrypt)

Fgnl ba gur genvy, lbh pna'g zvff gurz.

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)


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