Can you help identify this string, please?

Can anyone help me identify this string's encoding or compression
algorithm?  Here it is:
y|xtEbyojO}@OU@??Um@[q@[y@YaAU_AOi@eAmEUaAQy@Iy@A]??F}@LmAN}@f@yAh@iAl@q@hAy
 @dAk@p@q@d@gANaAFeCH}B@uBIkAWcAEIe@{@iAs
AW[{AkBqBaCe@s@Qc@_@cAaAeDgAwDWm@CGY
 i@i@}@i@u@s@}@q@m@mCkBaCiBeA}@SQsAiAo@q@
c@q@Se@Ks@AaAJgAPuAFkBDyBRsOHiEAcEEs
B?gALeAf@wAx@aAdAg@fA]hBm@p
 @e@Zc@R_@PoAJ{AX}BLsAFi@Fa@P]RY|@m@f@i@b
@y@ZeATgAFs@Ai@Kw@Wq@a@m@cA{@uAgAk@[
 AAwDsAi@_@m@i@i@_A]cAsC}KMcAAaAD_AJ_BZsE
Do@]s@s@Es@l@o@bAW^]DQUDi@ZaAb@eB	
2;UbBu@jEiAf@k@b@w@`@_A& #92;eAV}AZqAf@gAxAaDd@y@P]b@s@~AoA`BsAfE
mEj@s@\u
@j@m@v@]x@Yp@[bAq@??pDeDlB}
 BpBaCzAuA~@{@n@i@p@]l@Qf@E|@Kz@Wr@m@j@{@
VcA\cAV_Ap@mB`@_Ab@{@n@_A`AoAv@c
 Ap@u@|AwBfAsAbAu@v@i@z@a@x@QhAU|AS`@KlAY
??bD}@NEvC{@v@YX[??HK`@}@v@cCHYnA{DP
 i@hAkDVw@~@}CPk@hAkDLa@jAqDHYpAaEJ[d@}Aj
@iBHWrAiE??hEzB

I *think* it decodes into a list of about 207 latitude/longitude
points, but I'm
not sure.  I thought it was simply B64 encoded, but I couldn't decode
it as such.  Any tips would be welcomed.

Thanks,

Bret