User blog:M&s mapping/Help: Map Alignment

I want to make a video about a battle, the English Siege of San Juan in 1797. I found the maps I needed. However I cant seem to align them in Paint.net.

One is about the geography of the area (the one below). It goes from Punta Salinas (Salinas Point), west of San Juan (but in the right of the map), in Toa Baja, to Torrecilla Baja in Loiza (to the left of the map), east of San Juan. The map is upside down, the top is south and the bottom is the north. The map dates to the 1770s. its the best, most accurate, and closest to the timeframe that I could find.

The other one I have is more about infrastructure of San Juan, about a hundred years later. However this map includes the fortifications of San Juan that were built during the 18th century. The map that I use for the geography has some of these defenses, but they are hard to see and are incomplete. I have found other military map closer to this time frame, but they are drawn inaccurately, but they still provide good info on which defenses existed. This one has the cardinal directions right.

I need them both. the terrain and the defenses. These were key elements in the battle. Since when they have never being?

The problem is that I cant align them. One is upside down. When I flipped one to the right direction in Paint.net, I noticed one has a different angle than the other, and that they have a difference with size. By size, I mean that the Inlet of San Juan is bigger in one map than the other. I try aligning them with the size and angles of some of the building in the city, and/or with the coast. Unfortunately, it still would not align, I constantly changed size and angle until ruining it and having to undo everything and start over.

Im looking for someone that can give me suggestion or just do the alignment for me. I really want to do this now, since the anninversary of this battle starts in April 18th to May 1st, and I expect a lot of work.

The Siege of San Juan in 1797 was a battle during the French Revolutionary War in the Island of Puerto Rico. Puerto Rico was under Spanish rule and was called the Captaincy General of Puerto Rico, and it was a strategic point in the Caribbean. This battle is important, because it was the biggest invasion that San Juan (the capital port city) has faced and one of the biggest invasion ever faced by a Spanish colony in the Americas (the force consisted of 8,000-13,000 British soldiers and sailors under Brigadier General Sir Ralph Abercrombie and 60-68 ships under Admiral Henry Harvey). The Spanish had 900 regular infantrymen under a regiment called the Fixed Regiment of Puerto Rico and had a subtle navy force of ~30 boats, led by a governor who fought in the American Revolutionary War, Brig. General Ramon de Castro.The Spanish won the battle, holding the Inlet of San Juan, not with just its fortifications, but with the constant reinforcement of men from the rest of the island. ~2,000 farmers, townfolk, freed slaves, and disciplinary trained men stood agasint the English for their patriotism. Spaniards and Puerto Ricans won agaisnt the most powerful army and navy of the World during the time

PS:  Today there is a reenacting non-profit organization called the Regimento Fijo de Puerto Rico (Fixed Regiment of Puerto Rico), in which I am a member. This organization reenacts Puerto Rico in the 18th century and its main event is this battle which they reenact between April 27th to April 29th. Reenactors from the US, UK, Canada, and Poland come to participate in this reenaction. This is my first year in the organization.