diff --git a/Cargo.lock b/Cargo.lock
index dd6b67d..6c71a0e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -37,6 +37,30 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "aho-corasick"
+version = "0.7.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "ansi_term"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "anyhow"
+version = "1.0.70"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7de8ce5e0f9f8d88245311066a578d72b7af3e7088f32783804676302df237e4"
+
 [[package]]
 name = "approx"
 version = "0.4.0"
@@ -65,7 +89,7 @@ checksum = "e4655ae1a7b0cdf149156f780c5bf3f1352bc53cbd9e0a361a7ef7b22947e965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -76,7 +100,7 @@ checksum = "1cd7fce9ba8c3c042128ce72d8b2ddbf3a05747efb67ea0313c635e10bda47a2"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -199,6 +223,21 @@ dependencies = [
  "inout",
 ]
 
+[[package]]
+name = "clap"
+version = "2.34.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
+dependencies = [
+ "ansi_term",
+ "atty",
+ "bitflags",
+ "strsim",
+ "textwrap",
+ "unicode-width",
+ "vec_map",
+]
+
 [[package]]
 name = "cookie"
 version = "0.16.2"
@@ -298,7 +337,7 @@ dependencies = [
  "proc-macro2",
  "proc-macro2-diagnostics",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -502,6 +541,15 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
+[[package]]
+name = "heck"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.19"
@@ -716,6 +764,12 @@ version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a60c7ce501c71e03a9c9c0d35b861413ae925bd979cc7a4e30d060069aaac8d"
 
+[[package]]
+name = "minimal-lexical"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
+
 [[package]]
 name = "mio"
 version = "0.8.6"
@@ -748,6 +802,16 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "nom"
+version = "7.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
+dependencies = [
+ "memchr",
+ "minimal-lexical",
+]
+
 [[package]]
 name = "nu-ansi-term"
 version = "0.46.0"
@@ -859,7 +923,7 @@ dependencies = [
  "proc-macro2",
  "proc-macro2-diagnostics",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -918,6 +982,17 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "pluscodes"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5d3288e02604f234a7071cba77560e6a6e47395268bf80611f7e2347b082efa"
+dependencies = [
+ "anyhow",
+ "regex",
+ "structopt",
+]
+
 [[package]]
 name = "polyval"
 version = "0.6.0"
@@ -937,10 +1012,34 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
 [[package]]
-name = "proc-macro2"
-version = "1.0.50"
+name = "proc-macro-error"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
+checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
+dependencies = [
+ "proc-macro-error-attr",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.107",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro-error-attr"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.52"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d0e1ae9e836cc3beddd63db0df682593d7e2d3d891ae8c9083d2113e1744224"
 dependencies = [
  "unicode-ident",
 ]
@@ -953,16 +1052,16 @@ checksum = "4bf29726d67464d49fa6224a1d07936a8c08bb3fba727c7493f6cf1616fdaada"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "version_check",
  "yansi",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.23"
+version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
+checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc"
 dependencies = [
  "proc-macro2",
 ]
@@ -1023,7 +1122,7 @@ checksum = "9f9c0c92af03644e4806106281fe2e068ac5bc0ae74a707266d06ea27bccee5f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1032,6 +1131,8 @@ version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "48aaa5748ba571fb95cd2c85c09f629215d3a6ece942baa100950af03a34f733"
 dependencies = [
+ "aho-corasick",
+ "memchr",
  "regex-syntax",
 ]
 
@@ -1110,7 +1211,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rocket_http",
- "syn",
+ "syn 1.0.107",
  "unicode-xid",
 ]
 
@@ -1162,7 +1263,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rust-embed-utils",
- "syn",
+ "syn 1.0.107",
  "walkdir",
 ]
 
@@ -1238,7 +1339,7 @@ checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1312,6 +1413,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "spatial-coordinate-systems"
+version = "0.1.0"
+dependencies = [
+ "nom",
+ "pluscodes",
+ "thiserror",
+ "utm",
+]
+
 [[package]]
 name = "spin"
 version = "0.9.5"
@@ -1336,6 +1447,36 @@ dependencies = [
  "loom",
 ]
 
+[[package]]
+name = "strsim"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
+
+[[package]]
+name = "structopt"
+version = "0.3.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c6b5c64445ba8094a6ab0c3cd2ad323e07171012d9c98b0b15651daf1787a10"
+dependencies = [
+ "clap",
+ "lazy_static",
+ "structopt-derive",
+]
+
+[[package]]
+name = "structopt-derive"
+version = "0.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcb5ae327f9cc13b68763b5749770cb9e048a99bd9dfdfa58d0cf05d5f64afe0"
+dependencies = [
+ "heck",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.107",
+]
+
 [[package]]
 name = "subtle"
 version = "2.4.1"
@@ -1353,6 +1494,17 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syn"
+version = "2.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59d3276aee1fa0c33612917969b5172b5be2db051232a6e4826f1a1a9191b045"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "tempfile"
 version = "3.3.0"
@@ -1368,23 +1520,32 @@ dependencies = [
 ]
 
 [[package]]
-name = "thiserror"
-version = "1.0.38"
+name = "textwrap"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a9cd18aa97d5c45c6603caea1da6628790b37f7a34b6ca89522331c5180fed0"
+checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
+dependencies = [
+ "unicode-width",
+]
+
+[[package]]
+name = "thiserror"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.38"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fb327af4685e4d03fa8cbcf1716380da910eeb2bb8be417e7f9fd3fb164f36f"
+checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.2",
 ]
 
 [[package]]
@@ -1451,7 +1612,7 @@ checksum = "d266c00fde287f55d3f1c3e96c500c362a2b8c695076ec180f27918820bc6df8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1514,7 +1675,7 @@ checksum = "4017f8f45139870ca7e672686113917c71c7a6e02d4924eda67186083c03081a"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1595,7 +1756,7 @@ checksum = "d337d3be617449165cb4633c8dece429afd83f84051024079f97ad32a9663716"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1620,6 +1781,18 @@ version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"
 
+[[package]]
+name = "unicode-segmentation"
+version = "1.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1dd624098567895118886609431a7c3b8f516e41d30e0643f03d94592a147e36"
+
+[[package]]
+name = "unicode-width"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.4"
@@ -1636,12 +1809,24 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "utm"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95b09e3b3a0abd1ccb77673a6b7b8875d9d1c80626154add451cf18392dc4c3c"
+
 [[package]]
 name = "valuable"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
 
+[[package]]
+name = "vec_map"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
@@ -1696,7 +1881,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "wasm-bindgen-shared",
 ]
 
@@ -1718,7 +1903,7 @@ checksum = "2aff81306fcac3c7515ad4e177f521b5c9a15f2b08f4e32d823066102f35a5f6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 7e5e44a..29734f0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,6 +10,7 @@ members = [
     "./xpin-wasm/",
     "./web",
     "./web-frontend/",
+    "./spatial-coordinate-systems/",
 ]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/spatial-coordinate-systems/Cargo.toml b/spatial-coordinate-systems/Cargo.toml
new file mode 100644
index 0000000..248b085
--- /dev/null
+++ b/spatial-coordinate-systems/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "spatial-coordinate-systems"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+nom = "7.1.3"
+pluscodes = "0.5.0"
+thiserror = "1.0.40"
+utm = "0.1.6"
diff --git a/spatial-coordinate-systems/src/common.rs b/spatial-coordinate-systems/src/common.rs
new file mode 100644
index 0000000..e148017
--- /dev/null
+++ b/spatial-coordinate-systems/src/common.rs
@@ -0,0 +1,36 @@
+use nom::{
+    branch::alt,
+    bytes::complete::tag_no_case,
+    character::{
+        complete::{space0, space1},
+        *,
+    },
+    combinator::{map, opt},
+    sequence::tuple,
+    IResult,
+};
+
+use crate::Direction;
+
+pub fn optional_separator<'a>(sep: char) -> impl FnMut(&'a str) -> IResult<&'a str, ()> {
+    map(
+        alt((
+            map(tuple((space0, complete::char(sep), space0)), std::mem::drop),
+            map(space1, std::mem::drop),
+        )),
+        std::mem::drop,
+    )
+}
+
+pub fn parse_direction(i: &str) -> IResult<&str, Direction> {
+    alt((
+        map(tag_no_case("north"), |_| Direction::North),
+        map(tag_no_case("south"), |_| Direction::South),
+        map(tag_no_case("east"), |_| Direction::East),
+        map(tag_no_case("west"), |_| Direction::West),
+        map(tag_no_case("n"), |_| Direction::North),
+        map(tag_no_case("s"), |_| Direction::South),
+        map(tag_no_case("e"), |_| Direction::East),
+        map(tag_no_case("w"), |_| Direction::West),
+    ))(i)
+}
diff --git a/spatial-coordinate-systems/src/dm.rs b/spatial-coordinate-systems/src/dm.rs
new file mode 100644
index 0000000..5f8bff2
--- /dev/null
+++ b/spatial-coordinate-systems/src/dm.rs
@@ -0,0 +1,104 @@
+use crate::{
+    common::{optional_separator, parse_direction},
+    Direction,
+};
+use nom::{
+    branch::alt,
+    character::complete::{self, space0, space1},
+    combinator::{eof, map, map_opt, map_res, opt},
+    number::complete::double,
+    sequence::{pair, tuple},
+    IResult,
+};
+use std::str::FromStr;
+
+pub fn parse_coordinate(i: &str) -> IResult<&str, (DegreeMinute, DegreeMinute)> {
+    map_opt(
+        tuple((parse, optional_separator(','), parse)),
+        |(ns, _, ew)| {
+            // Ensure this is a north/south then east/west direction
+            if ns.direction.is_lat() && ew.direction.is_lon() {
+                Some((ns, ew))
+            } else {
+                None
+            }
+        },
+    )(i)
+}
+
+pub fn parse(i: &str) -> IResult<&str, DegreeMinute> {
+    map(
+        tuple((
+            // Degrees
+            complete::i16,
+            optional_separator('°'),
+            // Minutes
+            double,
+            optional_separator('\''),
+            // Direction
+            parse_direction,
+        )),
+        |(degrees, (), minutes, (), direction)| DegreeMinute {
+            degrees,
+            minutes,
+            direction,
+        },
+    )(i)
+}
+
+#[derive(PartialEq, Debug)]
+pub struct DegreeMinute {
+    pub degrees: i16,
+    pub minutes: f64,
+    pub direction: Direction,
+}
+
+impl FromStr for DegreeMinute {
+    type Err = ();
+
+    /// Recognizes DMS in the formats:
+    ///
+    /// * `40° 31' 21" N, 105° 5' 39" W`
+    /// * `40 31 21 N, 105 5 39 W`
+    ///
+    /// ```rust
+    /// use spatial_coordinate_systems::dm::DegreeMinute;
+    /// use spatial_coordinate_systems::Direction;
+    /// use std::str::FromStr;
+    ///
+    /// assert_eq!(DegreeMinute::from_str("40 31.3 N").unwrap(), DegreeMinute {
+    ///     degrees: 40,
+    ///     minutes: 31.3_f64,
+    ///     direction: Direction::North,
+    /// });
+    /// assert_eq!(DegreeMinute::from_str("40°31'  N").unwrap(), DegreeMinute {
+    ///     degrees: 40,
+    ///     minutes: 31_f64,
+    ///     direction: Direction::North,
+    /// });
+    /// ```
+    fn from_str(i: &str) -> Result<Self, Self::Err> {
+        map(
+            tuple((
+                space0,
+                // Degrees
+                complete::i16,
+                optional_separator('°'),
+                // Minutes
+                double,
+                optional_separator('\''),
+                // Direction
+                parse_direction,
+                // Ensure no other characters can be read
+                eof,
+            )),
+            |(_, degrees, (), minutes, (), direction, _)| DegreeMinute {
+                degrees,
+                minutes,
+                direction,
+            },
+        )(i)
+        .map_err(|_| ())
+        .map(|(_, ret)| ret)
+    }
+}
diff --git a/spatial-coordinate-systems/src/dms.rs b/spatial-coordinate-systems/src/dms.rs
new file mode 100644
index 0000000..01ce209
--- /dev/null
+++ b/spatial-coordinate-systems/src/dms.rs
@@ -0,0 +1,115 @@
+use crate::{
+    common::{optional_separator, parse_direction},
+    Direction,
+};
+use nom::{
+    branch::alt,
+    character::complete::{self, space0, space1},
+    combinator::{eof, map, map_opt, map_res, opt},
+    number::complete::double,
+    sequence::{pair, tuple},
+    IResult,
+};
+use std::str::FromStr;
+
+pub fn parse_coordinate(i: &str) -> IResult<&str, (DegreeMinuteSecond, DegreeMinuteSecond)> {
+    map_opt(
+        tuple((parse, optional_separator(','), parse)),
+        |(ns, _, ew)| {
+            // Ensure this is a north/south then east/west direction
+            if ns.direction.is_lat() && ew.direction.is_lon() {
+                Some((ns, ew))
+            } else {
+                None
+            }
+        },
+    )(i)
+}
+
+pub fn parse(i: &str) -> IResult<&str, DegreeMinuteSecond> {
+    map(
+        tuple((
+            // Degrees
+            complete::i16,
+            optional_separator('°'),
+            // Minutes
+            complete::i16,
+            optional_separator('\''),
+            // Seconds
+            double,
+            optional_separator('"'),
+            // Direction
+            parse_direction,
+        )),
+        |(degrees, (), minutes, (), seconds, (), direction)| DegreeMinuteSecond {
+            degrees,
+            minutes,
+            seconds,
+            direction,
+        },
+    )(i)
+}
+
+#[derive(PartialEq, Debug)]
+pub struct DegreeMinuteSecond {
+    pub degrees: i16,
+    pub minutes: i16,
+    pub seconds: f64,
+    pub direction: Direction,
+}
+
+impl FromStr for DegreeMinuteSecond {
+    type Err = ();
+
+    /// Recognizes DMS in the formats:
+    ///
+    /// * `40° 31' 21" N, 105° 5' 39" W`
+    /// * `40 31 21 N, 105 5 39 W`
+    ///
+    /// ```rust
+    /// use spatial_coordinate_systems::dms::DegreeMinuteSecond;
+    /// use spatial_coordinate_systems::Direction;
+    /// use std::str::FromStr;
+    ///
+    /// assert_eq!(DegreeMinuteSecond::from_str("40 31 21 N").unwrap(), DegreeMinuteSecond {
+    ///     degrees: 40,
+    ///     minutes: 31,
+    ///     seconds: 21_f64,
+    ///     direction: Direction::North,
+    /// });
+    /// assert_eq!(DegreeMinuteSecond::from_str("40°31' 21 \" N").unwrap(), DegreeMinuteSecond {
+    ///     degrees: 40,
+    ///     minutes: 31,
+    ///     seconds: 21_f64,
+    ///     direction: Direction::North,
+    /// });
+    /// ```
+    fn from_str(i: &str) -> Result<Self, Self::Err> {
+        map(
+            tuple((
+                space0,
+                // Degrees
+                complete::i16,
+                optional_separator('°'),
+                // Minutes
+                complete::i16,
+                optional_separator('\''),
+                // Seconds
+                double,
+                optional_separator('"'),
+                // Direction
+                parse_direction,
+                // Ensure no other characters can be read
+                eof,
+            )),
+            |(_, degrees, (), minutes, (), seconds, (), direction, _)| DegreeMinuteSecond {
+                degrees,
+                minutes,
+                seconds,
+                direction,
+            },
+        )(i)
+        .map_err(|_| ())
+        .map(|(_, ret)| ret)
+    }
+}
diff --git a/spatial-coordinate-systems/src/lib.rs b/spatial-coordinate-systems/src/lib.rs
new file mode 100644
index 0000000..64b4740
--- /dev/null
+++ b/spatial-coordinate-systems/src/lib.rs
@@ -0,0 +1,71 @@
+#![allow(unused_imports)]
+
+use std::str::FromStr;
+mod common;
+pub mod dm;
+pub mod dms;
+
+use dm::DegreeMinute;
+use dms::DegreeMinuteSecond;
+use nom::{
+    branch::alt,
+    character::complete::space0,
+    combinator::{eof, map},
+    sequence::tuple,
+    IResult,
+};
+
+pub struct LatLon {
+    pub lat: f64,
+    pub lon: f64,
+}
+
+#[derive(thiserror::Error, Debug)]
+pub enum Error {
+    #[error("Unknown")]
+    Unknown,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum Direction {
+    North,
+    South,
+    East,
+    West,
+}
+
+impl Direction {
+    /// True if this is north/south
+    pub fn is_lat(&self) -> bool {
+        self == &Direction::North || self == &Direction::South
+    }
+    /// True if this is east/west
+    pub fn is_lon(&self) -> bool {
+        self == &Direction::East || self == &Direction::West
+    }
+}
+
+pub enum Coordinate {
+    LatLon((f64, f64)),
+    DegreeMinuteSecond((DegreeMinuteSecond, DegreeMinuteSecond)),
+    DegreeMinute((DegreeMinute, DegreeMinute)),
+}
+
+pub enum CoordinateSystem {
+    LatLon,
+}
+
+impl FromStr for Coordinate {
+    type Err = ();
+
+    fn from_str(i: &str) -> Result<Self, Self::Err> {
+        tuple((
+            space0,
+            alt((map(dms::parse_coordinate, Coordinate::DegreeMinuteSecond),)),
+            space0,
+            eof,
+        ))(i)
+        .map(|(_, (_, coordinate, _, _))| coordinate)
+        .map_err(|_| ())
+    }
+}