Well, Jobe asked where the Old Parks are located and here is a list I compiled from every source I could find.  Please know that sometimes the names conflict in the records but the locations do not.  So, I'll go in chronological order with the names I have. As far as I know nothing is left of these old parks.  I don't know if there are any historical signs there or not.

If anyone goes to these places please, take a picture and share it with us so we can see what it looks like now.  If I can finad any pictures on the net of the old parks I'll post them in the Fan Shots. 

For those who love to read there are two books with some good pictures of the team and players.  Where they Ain't  by Burt Soloman has information about the 1890's O's.  The Ultimate Baseball Book has a chapter about the old Orioles with some great pictures in it.  One shot in 1897 of the park is great! 

The Orioles started in 1882 in Newington Park.  Some say they played just part of the year there, others the whole year.  This park was also the home from 1872-1874 of the National Association team Lord Baltimore(s).  The park was bordered by the following streets:  Pennsylvania Ave, Gold Street, Calhoun Street and Baker Street.  It was in West Baltimore.

The Orioles next played at Union Park or as some called it Oriole Park.  There seems to be some conflict in what the name of the park was.  The O's played here from 1882 or 1883-1889 when they left the AA.  It was bordered by 6th Street, Huntington Avenue (later changed to 25th street) and York Road (later changed to Greenmount).

When the Orioles rejoined the AA part-way through the 1890 season they had moved just north to a new park called Oriole or Union Park.  They played here for part of the 1890 and for a very short period in 1891 before moving during the '91 season again! This park was bordered by the following streets: 10th street (which was renamed 29th st.), York Road (later renamed Greenmount), 9th street (was renamed 28th street) and the final road bordering it was Barclay Road.

In 1891 the O's moved to their next park, Union Park which again some called Oriole Park.  This park burned down in 1894, but was rebuilt.  This version of Oriole/Union Park was also used in 1901-02 by the American League version of the Orioles which later moved to New York and became we know who!  This park was bordered by 25th street and Barclay. 

There is a book about this, but I've never seen it or read it.  It is called Baseball in Baltimore by Tom Flynn.  I hope this is helpful and again, if anyone gets to these places please tell us about it!  I know I would be interested. :)