Fort Meigs

I spent my teenage years growing up in Maumee, Ohio, on the banks of the Maumee River just south of Toledo. Maumee is a lovely little town that has changed little since my family moved there in the early 1970s. The northwest Ohio region and the Maumee River played an important role in the early history of the United States. The river’s direct connection to the west end of Lake Erie made it a key transportation and trade route into what at the time was referred to as the Northwest Territories.  The British had long considered the territory as Indian land and only maintained military and small trading outposts in the region. White settlement was strongly discouraged. However, at the close of the American Revolution the British ceded control of the region to the Americans (although they took their sweet time getting out of town) and European settlers lost no time spilling over the Appalachians and on into the new territories.

In 1787 Congress passed the Northwest Ordinance of 1787 that formally opened the region to settlement (and not coincidentally established the concept of public land sales as a way for the cash starved federal government to generate some revenue). Very quickly Lake Erie and it’s major tributaries became critical territory and conflicts frequently flared up as American, British and Indian interests intersected and collided in what was effectively the new American frontier. For thousands of years the Native Americans had used the Maumee River as a major trade route. The European powers and the new American republic recognized the river as the western gateway to the rich lands of the Ohio Country interior (today’s western Ohio, Indiana and lower Michigan). All sides considered control of the waterway a strategic necessity.

The Maumee River basin drains regions of three states

After the close of the American Revolution the British never really vacated the region. They maintained a number of outposts in places such as Detroit (yes, that Detroit) and Fort Miami near the city of Maumee, conducted a regular business of illegal trade with the local Indians and did a lucrative side business in fomenting anti-American sentiment among the tribes of the Western Confederacy.

Sadly, today all that’s left of Fort Miami are some low triangular mounds that trace the outline of the stockade

This all erupted into the Northwest Indian War, culminating in 1794 with the Battle of Fallen Timbers just a few miles away from Fort Miami. The American general, ‘Mad’ Anthony Wayne decisively defeated the tribes of the Western Confederacy on a piece of terrain marked by a tangle of trees that had been blown down during a violent storm. The Indians retreated towards what they thought would be refuge with the British garrison at Fort Miami, but the British commander refused to open the stockade. The surviving Indians scattered and the war was over. Not long after the British abandoned the fort and marched north into Canada.

Nineteen years later the British are back. It’s 1813 and the War of 1812 is raging. The Lake Erie basin is a critical theater of operations. The Americans have decided to invade lower Canada and move to establish a fort and supply depot on the Maumee River to support the invasion. The commander, General William Henry Harrison, selects a spot on a bluff on the south side of the river that overlooks the first set of rapids. These rapids serve as a natural choke point for any boats, barges, canoes or naval vessels trying to move upstream from Lake Erie. It is an ideally situated fort, and whoever controls it also controls all movement on the river. The British want it, and want it bad.

The fort was named Fort Meigs after Ohio governor Return J. Meigs. The fort was originally garrisoned with a few Regular Army troops and Ohio militia. Construction started in February 1813 and just two months later the fort was placed under siege by British forces that had marched down out of Canada and re-occupied the old Fort Miami stockade. Forts Meigs and Miami were located a mere two miles from each other, on opposite sides of the river.

Fort Meigs has been rebuilt and is now an active historical museum site

The siege was broken when 1,200 Kentucky militia moved up from Cincinnati and followed the Maumee River to the fort. In May of 1813 a series of short, sharp ground skirmishes resulted in the defeat of the British and their Indian allies, and the British abandoned Fort Miami. It’s this first siege, and the Kentucky militia’s involvement, that bring us to the real point of this post. (Took me a while to get here, didn’t it?)

Part of the record of the siege is a vividly detailed battle map drawn up by an officer of the Kentucky Militia, Captain William Sebree. Seabree was the commander of a company of infantry that drew most members from around Campbell County, Kentucky. The company was designated the 8th Company of the 10th Regiment, Kentucky Light Infantry that was commanded by Lt. Col. William Boswell. Indications are that Sebree compiled his map after returning to Kentucky at the end of the war. However, the amount of detail in the map – both the cartographic representation of natural and man made features and the written depictions of the flow of the skirmishes and battles – makes it clear that Captain Sebree was working from a rich collection of original material. Certainly he kept a detailed journal while in command and also had copies of his company’s daily logs and reports. He likely also had access to the regimental papers and solicited input from other unit commanders and common soldiers. What emerged was less an authoritative battle map and more a piece of patriotic folk art that still manages to convey in some detail the ebb and flow of battle.

FT Meigs

 Captain William Sebree’s ‘Plan of Fort Meigs’ and It’s Environs’ (click to enlarge)

The map shows that Sebree had an eye for hard military detail, such as the detailed depiction of the Fort Meigs stockade area:

FT Meigs Stockade

 (Click to enlarge)

Or the details of the British artillery positions just across the river from the fort:

FT Meigs - British Artillery Positions

 (Click to enlarge)

But he couldn’t resist a bit of patriotic sentimentality:

FT Meigs - Burying Place

 (Click to enlarge)

And a good bit of artistic embellishment – mounted Indians, boats on the river, trees bending in the breeze, and dogs (dogs?):

FT Meigs - Artistic Elements

 (Click to enlarge)

It’s clear Captain Sebree was not a trained topographer. Many topographic details are badly out of proportion and he makes use of different scales:

FT Meigs - Scales

There is no north arrow or compass rose (on this map, north is to the right). But there is perhaps the more important (to Sebree) ‘all seeing eye’ with the phrase annuit coeptis (Providence favors this endeavor). This symbol is taken from the Great Seal of the United States, adopted around 1782, and was in common use in the early 19th century. However, it may also indicate that Captain Sebree was a Mason, and the first authorized Masonic Lodge in northwestern Ohio was organized by the American officers stationed at Fort Meigs in 1813. It is highly likely that Captain Sebree was a Mason (as were many officers of his time) and a member of this lodge. This is all speculation on my part, but I think the threads are there.

FT Meigs All Seeing Eye

The map appears to be a commercial product. It’s a mix of set type and what looks to be woodcut printing. My guess is that Captain Sebree had these printed for commercial sale to a public eager for a memento of America’s glorious victory over the British and their Indian allies, or he sold copies by subscription. However, I know of only one existing copy that is in the Library of Congress map collection.

It seems Captain Sebree was an adventurous fellow. He was born in Virginia in 1776, migrated to Kentucky and settled in Boone County, studied law after the war and eventually moved to Pensacola, Florida where he was appointed the federal marshall for the territory of West Florida. He died in 1827 of yellow fever and is buried in Saint Michael’s Cemetery in Pensacola.

Dan Wilkins runs a great blog about the War of 1812 and has a section devoted to Fort Meigs and the events that took place there. I lived in Maumee for almost 10 years and have a deep interest in the history of the fort and the battles that took place around it. But until I read Dan’s blog I had no idea that remnants of the original British canon pits dug during the first siege were still visible in the old Fort Meigs Cemetery just east of the fort. If you have any interest in the War of 1812, and in particular the events that took place in the Northwest Territory, I recommend you spend some time taking a look at Dan’s writings.

– Brian

Army Geospatial

My good friend Bill Farr sent me this YouTube link yesterday showing US Army Geospatial Engineers in what appears to be a planning exercise in preparation for deploying to Africa as part of the Ebola relief effort. The video was filmed at the Army Geospatial Center on Fort Belvoir, VA (the old Topographic Engineering Center) and it shows enlisted geospatial analysts running through different scenarios.

I post the video mainly for comparison. A lot of my civilian GIS colleagues really have no idea just what geospatial engineers in the US military do. This is a short but good snapshot of the kinds of projects Army geospatial engineers work on day-to-day.

– Brian

Something Interesting From Trimble

I’ve been expecting one (or more) of the major survey & GIS data collector manufacturers to come out with something like this for some time now. I’m not surprised that Trimble was first out the gate. It’s called the Trimble Leap.

Trimble Leap

If you understand what’s going on with this new product you realize it’s a fascinating concept. It’s not just a small GPS receiver mated to a smartphone via Bluetooth – that capability has been available for a few years now. What this receiver provides is more advanced GPS signal tracking and the integration of Trimble’s RTX GPS data correction service. Trimble’s RTX service is a virtual reference station (VRS) system that receives GPS data corrections using the smartphones’s cellular data connection. This allows the Leap receiver to provide on-the-fly GPS positional accuracies that are less than 1 meter. Remember sports fans, the best your smartphone or Garmin Nuvi can do is about 15 feet, and that’s on a good day, under open skies, with lots of GPS satellites available.

Keep in mind that the Leap is not a survey grade device. It’s a lower precision field data collection device. The kind of thing a utility company would send a work crew out with to collect manhole locations. For applications like utility data collection, sub-meter accuracy is just fine.

The Leap concept is the next evolutionary step to take smartphones into the high accuracy/precision GIS data collection role. Smarphones are really just small computers with built-in modems, so they are the ideal computing platform for applications like this. However, smartphones have one huge Achilles heel – battery life. An ‘always on’ Bluetooth connection and cellular data connection will suck a smartphone battery dry in just a few hours. This is not a Trimble issue, but something that must be taken into consideration when putting devices like these into the field to collect a day’s worth of data. Better make darned sure you’ve got that in-car phone charger along with you!

There are still a lot of unknowns with regards to the capabilities of this system. Is the Leap receiver GLONASS capable? Does it allow data collection without the RTX connection? What about cost? I’ve read reports that the Leap hardware will run just under $1,000 and the RTX data correction service will be an additional $400/year per device. If you have any understanding of how much RTK compatible GPS receivers cost, and how much a VRS data service costs you will realize that $1,000 for the hardware and $400/year for the data service is a bargain.

Where I think Trimble stumbles is that they have slaved the Leap to their Terrain Navigator Pro (TNP) software. My impression is that TNP is a moribund product and Trimble is trying to breath some life into it by slaving it to a very capable hardware package. My hope is that Trimble quickly migrates the Leap software interface to other products like its own TerraFlex cloud service and even develops a plug-in that allows Leap data streams to be read by products like ArcGIS Online mobile applications.

– Brian