*> Airspace for Livingston, Montana < *> < *> Data courtesy of Lynn Alley < *> < *> File created on Wednesday, 03 September 2008 at 03:15 GMT < *> < *> US AIRSPACE INFORMATION FROM NASR DATA EFFECTIVE 06/05/2008 < *> UNOFFICAL DATA - NOT FOR NAVIGATION < *> < *> The information in this file is composed of computed approximations of the < *> arcs and lines that make up various airspace boundaries, which have been < *> derived from lists of points along those boundaries. The point data has < *> been taken from the Federal Aviation Administration National Airspace < *> System Resource (NASR) files as published by the National Flight Data < *> Center. Errors in the computed positions of the boundaries themselves will < *> generally be less than 300 feet (although errors in the estimated positions < *> of arc center points and radii will be much larger); however, any of the < *> following factors may cause errors to be many times greater: < *> < *> 1. Errors in the NASR point data; (NOTE: NASR shape files for airspace < *> classes B, C, and D are currently designated as beta test < *> information, which will not be officially supported until sometime < *> later in 2008) < *> 2. Cases involving irregularly shaped boundaries, such as those formed < *> by rivers and roads, etc.; < *> 3. Cases where arcs form the boundaries of MOAs, Alert areas, or < *> Restricted or Prohibited airspace (due to imprecise descriptions < *> of such boundaries in the NASR files); and < *> 4. Errors in the methods or programs that are used to compute the < *> approximations. < *> < *> Altitude information for the ceilings and floors of special use airspace < *> contained in these files is unreliable due to the imprecise, natural- < *> language encoding of this information in the source NASR data. The same is < *> true for time-of-use information. Always refer to official sources, such < *> as current sectional charts, for authoritative information. < *> < *> Note that the software used to produce the approximations contained herein < *> has not been certified for navigational use -- CONSEQUENTLY, THIS < *> INFORMATION SHOULD NOT BE RELIED UPON FOR NAVIGATION. Use of this < *> information for any other purpose is solely at the user's risk. This < *> information is provided free of charge. No warranty, expressed or implied, < *> as to the accuracy or suitability of this information for any use is < *> provided. < *> < *> < *> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ End of the header ^^^^^^^^^^^^^^^^^^^^^^^^^^^^< * >> BILLINGS CLASS C << AC C SB 0,150,255 AN BILLINGS CLASS C AL SFC AH 7700 MSL V X=45:48:30 N 108:32:38 W DC 5.00 * * >> BILLINGS CLASS C << AC C SB 0,150,255 AN BILLINGS CLASS C AL 4900 MSL AH 7700 MSL V X=45:48:30 N 108:32:38 W DC 9.99 * * >> BOZEMAN CLASS D << AC D SB 0,255,0 AN BOZEMAN CLASS D AL SFC AH 7000 MSL V X=45:46:37 N 111:09:11 W DC 4.40 * * >> HELENA CLASS D << AC D SB 0,255,0 AN HELENA CLASS D AL SFC AH 6400 MSL DP 46:38:08 N 111:53:05 W DP 46:38:03 N 111:53:02 W DP 46:37:44 N 111:50:52 W DP 46:33:25 N 111:52:12 W DP 46:33:41 N 111:53:58 W V X=46:36:24 N 111:58:58 W V D=+ DB 46:33:41 N 111:53:58 W, 46:36:25 N 112:05:21 W DP 46:36:44 N 112:07:29 W DP 46:38:30 N 112:06:56 W DP 46:38:11 N 112:04:49 W V X=46:36:26 N 111:58:58 W V D=+ DB 46:38:11 N 112:04:49 W, 46:38:08 N 111:53:05 W * * End of the data