diff --git a/Data/LHA.lhs b/Data/LHA.lhs
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--- /dev/null
+++ b/Data/LHA.lhs
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+| This module provides data structures for HEP events, as outlined by the Les
+  Houches Accord (hep-ph/0109068v1). It attempts to be as close as possible to
+  a direct haskell translation of the accord. Other relevant documents include:
+
+* L. Garren, I. G. Knowles, T. Sjostrand and T. Trippe, Eur. Phys. J. C
+  15, 205 (2000).
+  
+* H. Plothow-Besch, Comput. Phys. Commun. 75, 396 (1993); CERN Program
+  Library Long Writeup W5051 (2000); refer to
+  <http://consult.cern.ch/writeup/pdflib/>.
+
+
+> module Data.LHA where
+
+| Describes a generated event.
+
+> data Event = Event
+>   { nPart     :: Int
+
+^ The number of particles in this event.
+
+>   , evProcId  :: Int
+
+^ The ID of the subprocess used to generate this event.
+
+>   , evWeight  :: Double
+>   , scale     :: Double
+
+^ The scale of the event, in GeV.
+
+>   , aQED      :: Double
+>   , aQCD      :: Double
+>   , parts     :: [Particle]
+>   }
+
+
+| Describes the properties of an event generation run. Note that this data
+  structure does not contain the generated event information.
+
+> data Run = Run
+>   { runBeam :: (Beam, Beam)
+
+^ The properties of the two beams being used in this run.
+
+>   , idwt    :: Int
+
+^ Switch dictating how the event weights are to be interpreted.
+
+>   , nProc   :: Int
+
+^ The number of different subprocesses being used.
+
+>   , procs   :: [Subprocess]
+
+^ List of all subprocesses being used.
+
+>   }
+
+
+| Represents the properties of a single beam particle.
+
+> data Beam = Beam
+>   { beamPDG :: Int
+
+^ ID of the beam particle according to the Particle Data Group convention.
+
+>   , beamE   :: Double
+
+^ Energy in GeV of the beam particle.
+
+>   , pdfg    :: Int
+
+^ Author group for the beam, according to the Cernlib PDFlib specification.
+
+>   , pdfs    :: Int
+
+^ PDF set ID for the beam, according to the Cernlib PDFlib specification.
+
+>   }
+
+
+| Describes the properties of a subprocess.
+
+> data Subprocess = Subprocess
+>   { procXSec  :: Double
+
+^ The cross-section of this subprocess, in pb.
+
+>   , procXErr  :: Double
+
+^ The statistical error associated with the value of procXSec.
+
+>   , procXMax  :: Double
+>   , procId    :: Int
+>   }
+
+
+| Describes a single particle component of a generated event.
+
+> data Particle = Particle
+>   { partPDG   :: Int
+
+^ ID of the particle according to the Particle Data Group convention.
+
+>   , status    :: ParticleStatus
+
+^ Status code of the particle.
+
+>   , mothers   :: (Int, Maybe Int)
+
+^ The mother particles.
+
+>   , iColor    :: (Int, Int)
+>   , partPx    :: Double
+>   , partPy    :: Double
+>   , partPz    :: Double
+>   , partE     :: Double
+>   , partM     :: Double
+>   , lifetime  :: Double
+
+^ The lifetime of the particle, in mm.
+
+>   , spin      :: Double
+>   }
+
+
+| Status codes for particles.
+
+> data ParticleStatus
+>   = Incoming              -- ^ Corresponds to status code -1.
+>   | OutgoingFinal         -- ^ Corresponds to status code +1.
+>   | IntermediateSpaceLike -- ^ Corresponds to status code -2.
+>   | IntermediateResonance -- ^ Corresponds to status code +2.
+>   | DocumentationOnly     -- ^ Corresponds to status code +3.
+>   | IncomingBeam          -- ^ Corresponds to status code -9.
+
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2012 Scott Lawrence <bytbox@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/lha.cabal b/lha.cabal
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--- /dev/null
+++ b/lha.cabal
@@ -0,0 +1,22 @@
+Name:                lha
+Version:             0.1
+Synopsis:            Data structures for the Les Houches Accord
+Description:         This package provides data structures for HEP events, as outlined by the Les Houches Accord (hep-ph/0109068v1)
+Homepage:            https://github.com/bytbox/lha.hs
+License:             MIT
+License-file:        LICENSE
+Author:              Scott Lawrence
+Maintainer:          bytbox@gmail.com
+Category:            Physics
+Build-type:          Simple
+Cabal-version:       >=1.10
+
+Library
+  Exposed-modules:   Data.LHA
+  Default-language:    Haskell2010
+  Build-depends: haskell2010 >= 1.0
+   
+source-repository head
+  type:  git
+  location: https://github.com/bytbox/lha.hs.git
+