Entering Colombia is easy for most North Americans and many others.
Just show up at the border or airport with your passport showing six-months' validity. You get a no-cost tourist stamp good for 90 days.
Extending for an additional 90 days is slightly more complicated, but can be pretty painless. It should be done during the final week of validity of your original tourist stamp.
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Here in Quindío in Colombia's Juan Valdez Coffee Zone, I had to go to the Migratorio office (Centro Comerical Altavista, Armenia) with certain documents.
The process took one hour and cost $33 US, paid in pesos by Visa card.
Here is the required documentation I provided....
.. Showing of valid passport
.. Copy of passport photo/personal data pages and entry-to-Colombia stamp
.. Application I downloaded from a link provided at the laciudadperdida.com website -- This form itself was not required as the agent typed my information into her computer system. However, it was useful as it substituted for answering dozens of questions I otherwise might have been asked.
I brought photos, but these were not needed as I was photographed on the spot in the Migratorio office.
I was also fingerprinted inklessly.
cccmedia in the 'Q'