The cryptogram can be solved by constructing a key by putting the titles from the movies described below into a specific order and then numbering the letters of the movie titles(skipping any spaces).
Then you use those numbers as the key for the cryptogram. There are a few letters that are needed for the cryptogram that are not contained in any of the movie titles. Those letters are provided below:
C = 39 U = 40 B = 41 Q = 42 W = 43 G = 44 Y = 45 V = 46 P = 47 Z = 48
Numbers separated by a "." represent letters within the same word and numbers separated by a space represent the start of a new word.
Cache Location Cryptogram
4.10.8 22.214.171.124.23 2.3 126.96.36.199.5.28.18 36.25 9.10.23
188.8.131.52.184.108.40.206.8 220.127.116.11.9.8.34 27.17 18.104.22.168.42.40.8 5.20.23
22.214.171.124.35 126.96.36.199 41.23 188.8.131.52.33 24.17 25.20.35
184.108.40.206.45 9.10.8 220.127.116.11.8 27.38 18.104.22.168.22.214.171.124.18
126.96.36.199.2.17 6 188.8.131.52.184.108.40.206 220.127.116.11.9 25.31
18.104.22.168.12.38 25.10.23 29.31.44 36.17.30 22.214.171.124 45.31.40 126.96.36.199
188.8.131.52.8 184.108.40.206.10.23.34 220.127.116.11.29.23
Parts of Field of Dreams were filmed in Dubuque, as well as the nearby towns of Dyersville and Galena, Illinois. The movie starred Kevin Costner, Amy Madigan, Gaby Hoffmann, James Earl Jones, Ray Liotta, and Burt Lancaster. Both well known Hollywood actors, and members of the community were cast as extras.
Filming began on May 25, 1988. The shooting schedule was built around the availability of Costner, who had to leave in August to film Revenge. Production rolled for six-day weeks, with some weather and time constraints. For instance, given the corn field planted by the filmmakers was taken too long to grow, interior scenes took a priority as an artificial irrigation system was used to make sure the corn seeds grew to Costner's height. The primary location was shot in Dubuque County, Iowa, where a farm near Dyersville was used for the Kinsella home, and an empty warehouse in Dubuque was used to build various interior sets. Galena, Illinois dubbed for Moonlight Graham's Chisholm, Minnesota, and a few location shots were done for a week in Boston, notably Fenway Park.
During a lunch with the Iowa Chamber of Commerce, Robinson told about his idea of the final scene with headlights for miles at the horizon. They replied that it could be made. Dyersville was blacked out as part of a community event that also involved commuters driving to the field. The drivers in the final shot were instructed to switch between their high beams and low beams to allow for the illusion of movement. The film crew on the farm was hidden to make sure the aerial shot did not reveal them.
While the Kinsella farm was shot at the property of Don Lansing, the baseball field also used parts of the neighbor farm, whose owner, Al Amsekamp, was equally cooperative with the filmmakers. As the schedule was too short to have actual grass on the field, an expert on sod laying, responsible for the Dodger Stadium and Rose Bowl, was hired to build it. The grass was also painted given it would not have time to become green naturally.
While Amsekamp built corn on his part of the field, Lansing mantained his as a tourist destination. He did not charge for admission or parking, and derived revenue solely from the souvenir shop. Approximately 65,000 people visited annually. In July 2010, the farm containing the "Field" was listed as for sale. On October 31, 2011, the site was sold to a company called Go The Distance Baseball for an undisclosed fee.
The movie F.I.S.T. was filmed in Dubuque. Sylvester Stallone starred in this film as a trucker who compromises his principles as he moves up through the labor union organization. Dubuque was chosen because without TV antennas it looked more like Cleveland of the 1930s than Cleveland did.
Take This Job and Shove It, a movie starring Robert Hays and Art Carney that was filmed at the old Dubuque Star Brewery with other locations around the city of Dubuque and some minor scenes shot in Minneapolis, Minnesota.
Signing the log will require solving a field puzzle that was inspired by the scene from another movie(not one shot in Dubuque though). Congratulations to BigBrotherBear and iowaPete for FTF.