Underwater Programming Laboratories



OSM trails are trail map overlays to see trails on top of maps that do not have trails, or do not have trails in areas you are interested in. They are extracted from data provided by OpenStreetMap.
These maps are provided "as is". Please consult the Map Terms for more information.

United States
RegionSizeDateDownload
Alabama0.81 MB2022-06-24OSM Trails Alabama.zip
Alaska0.78 MB2022-06-24OSM Trails Alaska.zip
Arizona2.53 MB2022-06-24OSM Trails Arizona.zip
Arkansas0.53 MB2022-06-24OSM Trails Arkansas.zip
California9.71 MB2022-06-24OSM Trails California.zip
Colorado3.99 MB2022-06-24OSM Trails Colorado.zip
Connecticut1.41 MB2022-06-24OSM Trails Connecticut.zip
Delaware0.23 MB2022-06-24OSM Trails Delaware.zip
District of Columbia0.19 MB2022-06-24OSM Trails District of Columbia.zip
Florida3.30 MB2022-06-24OSM Trails Florida.zip
Georgia1.44 MB2022-06-24OSM Trails Georgia.zip
Hawaii0.23 MB2022-06-24OSM Trails Hawaii.zip
Idaho1.32 MB2022-06-29OSM Trails Idaho.zip
Illinois2.46 MB2022-06-29OSM Trails Illinois.zip
Indiana1.40 MB2022-06-29OSM Trails Indiana.zip
Iowa1.14 MB2022-06-29OSM Trails Iowa.zip
Kansas0.74 MB2022-06-29OSM Trails Kansas.zip
Kentucky0.73 MB2022-06-29OSM Trails Kentucky.zip
Louisiana0.32 MB2022-06-29OSM Trails Louisiana.zip
Maine0.82 MB2022-06-24OSM Trails Maine.zip
Maryland1.67 MB2022-06-29OSM Trails Maryland.zip
Massachusetts2.74 MB2022-06-24OSM Trails Massachusetts.zip
Michigan3.31 MB2022-06-29OSM Trails Michigan.zip
Minnesota2.41 MB2022-06-29OSM Trails Minnesota.zip
Mississippi0.31 MB2022-06-29OSM Trails Mississippi.zip
Missouri1.25 MB2022-06-29OSM Trails Missouri.zip
Montana0.90 MB2022-06-29OSM Trails Montana.zip
Nebraska0.76 MB2022-06-29OSM Trails Nebraska.zip
Nevada0.94 MB2022-06-24OSM Trails Nevada.zip
New Hampshire0.96 MB2022-06-24OSM Trails New Hampshire.zip
New Jersey1.69 MB2022-06-24OSM Trails New Jersey.zip
New Mexico1.21 MB2022-06-24OSM Trails New Mexico.zip
New York3.61 MB2022-06-29OSM Trails New York.zip
North Carolina1.99 MB2022-06-29OSM Trails North Carolina.zip
North Dakota0.32 MB2022-06-24OSM Trails North Dakota.zip
Ohio2.51 MB2022-06-24OSM Trails Ohio.zip
Oklahoma0.54 MB2022-06-29OSM Trails Oklahoma.zip
Oregon2.40 MB2022-06-24OSM Trails Oregon.zip
Pennsylvania3.00 MB2022-06-29OSM Trails Pennsylvania.zip
Puerto Rico0.19 MB2022-06-29OSM Trails Puerto Rico.zip
Rhode Island0.30 MB2022-06-24OSM Trails Rhode Island.zip
South Carolina0.70 MB2022-06-29OSM Trails South Carolina.zip
South Dakota0.25 MB2022-06-24OSM Trails South Dakota.zip
Tennessee1.32 MB2022-06-29OSM Trails Tennessee.zip
Texas3.60 MB2022-06-24OSM Trails Texas.zip
Utah2.00 MB2022-06-29OSM Trails Utah.zip
Vermont0.51 MB2022-06-24OSM Trails Vermont.zip
Virginia2.37 MB2022-06-29OSM Trails Virginia.zip
Washington3.57 MB2022-06-24OSM Trails Washington.zip
West Virginia0.45 MB2022-06-29OSM Trails West Virginia.zip
Wisconsin2.01 MB2022-06-29OSM Trails Wisconsin.zip
Wyoming1.02 MB2022-06-29OSM Trails Wyoming.zip

Map Installation

  1. After downloading the map, open the ZIP file and you will find a file with the name of the region that will end with ".img". This is the file you will copy to your GPS or SD card, not the file ending with ".zip"
  2. Connect your GPS to your computer, insert the SD card from your GPS into your computer if you can, or insert the SD card into an SD card reader, and then connect the SD card reader to your computer.
  3. Open Windows Explorer and select your GPS or the SD card.
  4. Open the folder with the name Garmin.
  5. Copy the file with the ".img" at the end that was in the ZIP file from your computer to the Garmin folder on your GPS or SD card.
  6. Disconnect your GPS or remove the SD from your computer or SD card reader and insert the SD card into your GPS.
  7. Power on your GPS.
  8. If the map is not visible or the trails are not visible, check your map setting to make sure the map is enabled.

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